10 Hawaii Coastal Drives So Beautiful They’ll Ruin All Other Road Trips For You Forever (With Secret Stops)

I’ve lived on Oahu for over three decades and explored every island countless times. These aren’t your typical tourist routes – I’m talking about drives where you’ll discover waterfalls hidden behind bamboo groves, secret beaches locals guard fiercely, and viewpoints that’ll give you chicken skin.

After personally driving these routes dozens of times, here’s everything you need to know about Hawaii’s most breathtaking coastal drives, complete with insider knowledge most visitors never find.

Before You Go: Essential Preparations

Car Rental Requirements by Island

All Islands: Valid driver’s license required (international license accepted), credit card in renter’s name, and collision coverage verification. Most rental companies charge $40/day for drivers aged 18-24, while drivers 25+ get standard rates. Critical: Many rental agreements void coverage for off-road driving, even in 4WD vehicles—stay on paved surfaces.

Big Island Specific: Saddle Road is now fully paved and rental-approved, but companies strongly discourage its use due to remote location and limited services.
West Maui and Red Road: While technically allowed, breakdowns can cost $1,200+ for towing, with 4+ hour wait times.

Emergency Contacts by Island

Island	Emergency	Police (Non-Emergency)	Fire Department	Civil Defense	Weather Service
Oahu	911	(808) 723-8960	(808) 723-7139	(808) 723-8960	(808) 973-5286
Maui	911	(808) 244-6400	(808) 244-6400	(808) 270-7285	(808) 877-5054
Big Island	911	(808) 935-3311	(808) 961-8336	(808) 935-0031	(808) 935-8555
Kauai	911	(808) 241-1711	(808) 241-4980	(808) 241-1800	(808) 245-6001

Essential Supply Checklist

Water & Hydration: 1 bottle of water (at least) per person, electrolyte tablets, insulated bottles.
Food: Energy bars, trail mix, fresh fruit, and emergency food for remote drives.
Safety Gear: First aid kit, prescription medications, reef-safe sunscreen (SPF 30+), whistle for emergencies. Electronics: Fully charged smartphone, portable battery pack, offline maps downloaded, headlamp/flashlight. Vehicle Emergency Kit: Jumper cables, basic tools, emergency triangles, duct tape.

Weather Resources

Download these essential apps before departing: Hawaii Weather Now App, NOAA Hawaiian Islands weather, and Windy App for localized conditions. Weather forecast phone lines: Maui (808-877-5111), Oahu (808-973-5286), Big Island (808-961-5582), Kauai (808-245-3564). Sign up for county-specific alerts at alerts.hawaii.gov.

Road to Hana: The Ultimate Rainforest Adventure

Planning

• Total Distance: 64 miles one-way
• Estimated Fuel Cost: $18-25 round trip
• Best Start Time: 6:00-7:00 AM
• Difficulty Level: Moderate
• Required Gear: Water (2L per person), snacks, rain gear, sunscreen, first aid kit

The Road to Hana isn’t just a drive—it’s a spiritual journey through Maui’s soul. This 52-mile stretch takes you past 600 curves and 54 bridges, but the real magic happens when you know where to stop. Most people rush to Hana town, but I’ve learned the secret is taking your time. Pro tip: Start early (6 AM) to avoid crowds and catch golden morning light filtering through the canopy.

Local Warning:

🌊 Flash Flood Risk: HIGH – Heavy mountain rains cause flash floods within minutes. Never cross flowing water.
🛣️ Road Conditions: Narrow one-lane bridges, 600+ curves, potential rockslides.
📱 Cell Service: Dead zones common after mile 10. Download offline maps before departure.
⚠️ Special Warnings: No gas stations until Hana. Avoid driving back in darkness.
🌊 Tide Considerations: Check tide charts for coastal stops like Red Sand Beach.

Secret Stop – Bamboo Forest Trail: Just past mile marker 7, there’s an unmarked trailhead leading to a hidden bamboo forest. The boardwalk keeps feet dry while walking through towering bamboo creating its own cathedral. Local knowledge: This spot floods quickly—avoid after heavy rains.

Hidden Gem – Twin Falls Secret Pools: Everyone stops at main Twin Falls, but local families swim in upper pools. Take the trail past the obvious waterfall and climb rocks carefully to find crystal-clear pools where water tastes sweet from volcanic filtration.

Best Photo Spots

• Twin Falls: GPS 20.911658, -156.243954 | Best light 9-11 AM | Camera settings f/8, 1/125s, ISO 200
• Waikamoi Nature Trail: GPS 20.876167, -156.210833 | Best light 10 AM-12 PM | Camera settings f/5.6, 1/60s, ISO 400
• Bamboo Forest: GPS 20.845000, -156.180000 | Best light overcast/diffused | Camera settings f/4, 1/80s, ISO 800

Instagram angles: Vertical waterfalls, bamboo canopy shots, bridge perspective shots.
Equipment tips: Waterproof camera bag, circular polarizing filter, tripod for waterfalls.

Chain of Craters Road: Earth’s Raw Power

Planning

• Total Distance: 18.8 miles one-way
• Estimated Fuel Cost: $15-20 round trip
• Best Start Time: 8:00-9:00 AM
• Difficulty Level: Easy-Moderate
• Required Gear: Water (2L minimum), snacks, hat, closed-toe shoes, gas mask for vog

Nothing prepares you for Chain of Craters Road on the Big Island. This 19-mile descent through Hawaii Volcanoes National Park shows what happens when fire meets water. The road literally ends where lava flow covered it in 1990.

Local Warning

🌊 Flash Flood Risk: MODERATE – Volcanic rain can be sudden and heavy.
🛣️ Road Conditions: Road ends at lava flow, earthquake damage possible, no services.
📱 Cell Service: No cell service along most of route.
⚠️ Special Warnings: VOG (volcanic gas) hazard. Carry gas mask. Stay away from lava viewing areas.
🌊 Tide Considerations: High surf makes coastal viewing dangerous.

Secret Stop – Devil’s Throat Crater: Most visitors miss this hidden gem because it’s hard to find. Use GPS coordinates 19.37744, -155.23716 to locate the unmarked pullout. A short walk leads to a massive crater locals call “Devil’s Throat” because of eerie sounds wind makes through vents.

The drive starts at 4,000 feet elevation and drops to sea level. You’ll pass seven major craters, each telling a different volcanic story. The Pu’u Loa Petroglyphs trail (0.7 miles each way) reveals over 23,000 ancient Hawaiian rock carvings.

Best Photo Spots

• Holei Sea Arch: GPS 19.305000, -155.035000 | Best light 6-8 AM, 5-7 PM | Camera settings f/8, 1/250s, ISO 200
• Pu’u Loa Petroglyphs: GPS 19.316667, -155.040000 | Best light 4-6 PM (shadows) | Camera settings f/11, 1/125s, ISO 100
• Kealakomo Overlook: GPS 19.325000, -155.045000 | Best light golden hour | Camera settings f/5.6, 1/200s, ISO 400

Instagram angles: Wide lava field panoramas, dramatic sea arch compositions, crater rim shots.
Equipment tips: UV filter for volcanic haze, extra batteries (drains faster), gas mask for vog protection.

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Tantalus Drive: Oahu’s Secret Mountain Escape (Oahu)

Planning

• Total Distance: 9 miles loop
• Estimated Fuel Cost: $8-12 round trip
• Best Start Time: 4:00-5:00 PM (sunset)
• Difficulty Level: Easy
• Required Gear: Light jacket, water, camera, flashlight for evening

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Living on Oahu, I escape to Tantalus Drive whenever city life gets overwhelming. This 9-mile loop through mountains above Honolulu offers views rivaling any in Hawaii.

Local Warning Box

🌊 Flash Flood Risk: LOW – Mountain roads can be slippery when wet.
🛣️ Road Conditions: Narrow mountain roads, steep drops, minimal lighting.
📱 Cell Service: Good coverage throughout.
⚠️ Special Warnings: Dense fog possible, drive slowly on curves, parking limited.
🌊 Tide Considerations: N/A – Mountain drive.

Secret Stop – The Hidden Treehouse: Locals know about a treehouse built into forest canopy with stunning views of Waikiki and Diamond Head. I won’t give exact directions (to preserve its magic), but look for the pullout near mile marker 4 and follow the narrow trail uphill.

Best Photo Spots

• Pu’u Ualaka’a Overlook: GPS 21.319722, -157.821111 | Best light 5-7 PM sunset | Camera settings f/8, 1/200s, ISO 400
• Round Top Drive Swing: GPS 21.325000, -157.815000 | Best light 4-5 PM | Camera settings f/4, 1/125s, ISO 200
• Tantalus Lookout: GPS 21.330556, -157.813889 | Best light blue hour | Camera settings f/2.8, 1/30s, ISO 1600

Instagram angles: City skyline with Diamond Head, swing shots with city backdrop, twilight cityscapes. Equipment tips: Tripod is essential for night shots, wide-angle lens for city panoramas.

Hamakua Coast: Big Island’s Emerald Highway (Big Island)

Planning

• Total Distance: 40 miles one-way
• Estimated Fuel Cost: $20-30 round trip
• Best Start Time: 8:00-9:00 AM
• Difficulty Level: Easy
• Required Gear: Rain gear, water, camera, hiking shoes

The Hamakua Coast drive feels like driving through Jurassic Park. This 40-mile stretch from Hilo to Waimea showcases the Big Island’s lush windward side.

Local Warning

🌊 Flash Flood Risk: HIGH – Frequent heavy rains, multiple stream crossings.
🛣️ Road Conditions: GPS errors are common. Apple Maps sent tourists on dangerous detours.
📱 Cell Service: Good on main highway, spotty on side roads.
⚠️ Special Warnings: Verify route manually, don’t trust GPS blindly, pack rain gear.
🌊 Tide Considerations: Coastal viewing platforms are safer at low tide.

Secret Stop – Akaka Falls State Park Hidden Trail: Everyone sees the 442-foot Akaka Falls from the main viewing platform. But take the unmarked trail to the left of the official path, and you’ll find a swimming hole at the base where rainbow mist creates natural light shows daily at 11 AM.

Best Photo Spots

• Akaka Falls Viewpoint: GPS 19.856667, -155.150000 | Best light 10-11 AM (rainbow) | Camera settings f/8, 1/60s, ISO 200
• Rainbow Falls: GPS 19.720000, -155.100000 | Best light 8-10 AM (rainbow) | Camera settings f/11, 1/30s, ISO 100
• Waipio Valley Overlook: GPS 20.118889, -155.583333 | Best light 7-9 AM, 5-6 PM | Camera settings f/8, 1/125s, ISO 200

Instagram angles: Multi-tier waterfall compositions, valley panoramas, coastal cliff shots.
Equipment tips: Rain protection essential, polarizing filter for rainbows, macro lens for tropical flowers.

Na Pali Coast: Kauai’s Dramatic Clifftop Journey

Planning

• Total Distance: 15 miles accessible portion
• Estimated Fuel Cost: $12-18 round trip
• Best Start Time: 6:00 AM (for photography)
• Difficulty Level: Challenging
• Required Gear: Water, snacks, camera, reef-safe sunscreen

Kauai’s Na Pali Coast represents the pinnacle of Hawaiian coastal beauty. While you can’t drive the entire coast, accessible portions offer jaw-dropping views.

Local Warning

🌊 Flash Flood Risk: HIGH – Mountain streams subject to flash flooding.
🛣️ Road Conditions: One-lane bridges, steep cliffs, no guardrails in places.
📱 Cell Service: Weakens approaching Ke’e Beach.
⚠️ Special Warnings: Road can close due to landslides. Check conditions first.
🌊 Tide Considerations: Queen’s Bath dangerous at high tide – multiple drownings.

Secret Viewpoint – Pu’u O Kila Lookout: Most tourists stop at Kalalau Lookout, but continue to Pu’u O Kila for unobstructed Na Pali views. Arrive at 6 AM to catch clouds rolling through valleys like ocean waves.

Best Photo Spots

• Kalalau Lookout: GPS 22.170833, -159.650000 | Best light 6-8 AM (clear) | Camera settings f/11, 1/250s, ISO 200
• Pu’u O Kila Lookout: GPS 22.175000, -159.655000 | Best light 6-7 AM | Camera settings f/8, 1/200s, ISO 400
• Ke’e Beach Viewpoint: GPS 22.225000, -159.583333 | Best light 5-7 PM | Camera settings f/5.6, 1/160s, ISO 200

Instagram angles: Dramatic cliff faces, valley depth shots, coastal sunset silhouettes.
Equipment tips: Telephoto lens for distant cliffs, wind protection for gear, extra memory cards.

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Kalanianaole Highway: Oahu’s Dramatic Eastern Coast

Planning

• Total Distance: 25 miles one-way
• Estimated Fuel Cost: $15-20 round trip
• Best Start Time: 7:00-8:00 AM
• Difficulty Level: Easy
• Required Gear: Swimwear, snorkel gear, water, sunscreen

Kalanianaole Highway hugs Oahu’s southeastern shore, offering the island’s most dramatic coastal scenery. This route from Honolulu to Waimanalo reveals why locals consider it Oahu’s crown jewel drive.

Local Warning

🌊 Flash Flood Risk: LOW – Well-maintained highway.
🛣️ Road Conditions: Heavy traffic, limited parking at popular spots.
📱 Cell Service: Excellent coverage.
⚠️ Special Warnings: Strong currents at Sandy Beach, parking lots fill early.
🌊 Tide Considerations: Blowhole best at high tide, swimming spots safer at low tide.

Secret Stop – Halona Blowhole Cave: Everyone stops at Halona Blowhole, but few know about the hidden cave below. During low tide, you can climb down (carefully!) to explore sea caves where scenes from “Pirates of the Caribbean” were filmed.

Best Photo Spots

• Halona Blowhole: GPS 21.279722, -157.677500 | Best light 8-10 AM, 4-6 PM | Camera settings f/8, 1/500s, ISO 200
• Makapuu Lighthouse Trail: GPS 21.306944, -157.651111 | Best light 6-8 AM | Camera settings f/5.6, 1/250s, ISO 200
• Lanai Lookout: GPS 21.287500, -157.670000 | Best light 5-7 PM | Camera settings f/8, 1/200s, ISO 400

Instagram angles: Blowhole action shots, lighthouse perspectives, bodysurfing action. Equipment tips: Fast shutter for wave action, salt spray protection, UV filter essential.

West Maui Coastal Loop: The Untamed Side

Planning

• Total Distance: 50 miles complete loop
• Estimated Fuel Cost: $25-35 round trip
• Best Start Time: 7:00 AM (experienced drivers only)
• Difficulty Level: Challenging
• Required Gear: Emergency kit, extra water, food, first aid, flashlight

West Maui’s coastal drive reveals the island’s wild personality. This route passes through landscapes feeling untouched by time.

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Local Warning

🌊 Flash Flood Risk: MODERATE – Remote area, help far away.
🛣️ Road Conditions: Cliff edges without guardrails, narrow roads.
📱 Cell Service: Dead zones for 10+ mile stretches.
⚠️ Special Warnings: EXPERIENCED DRIVERS ONLY. No emergency services. Rental car towing $1200+.
🌊 Tide Considerations: Blowhole viewing dangerous at high tide.

The road past Nakalele Blowhole travels along winding coastal cliffs without guardrails. Although paved and driven by locals daily, this half of the tour suits experienced drivers only.

Best Photo Spots

• Nakalele Blowhole: GPS 21.026944, -156.588056 | Best light 9-11 AM (high tide) | Camera settings f/8, 1/500s, ISO 200
• Olivine Pools: GPS 21.014167, -156.611667 | Best light 7-9 AM | Camera settings f/5.6, 1/250s, ISO 200
• Kahakuloa Head: GPS 21.018889, -156.551667 | Best light 4-6 PM | Camera settings f/8, 1/320s, ISO 400

Instagram angles: Blowhole eruptions, dramatic coastal cliffs, heart-shaped rock formations.
Equipment tips: Lens covers for salt spray protection, microfiber cloths, polarizing filter for ocean glare.

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Red Road: Big Island’s Adventure Coast

Planning

• Total Distance: 9.6 miles
• Estimated Fuel Cost: $10-15
• Best Start Time: 8:00-9:00 AM
• Difficulty Level: Moderate
• Required Gear: Water, swimwear, camera, insect repellent

The Red Road (Route 137) on the Big Island’s Puna coast offers Hawaii’s most adventurous coastal drive. This narrow, winding road passes through landscapes shaped by recent volcanic activity.

Local Warning

🌊 Flash Flood Risk: MODERATE – Coastal area with occasional heavy rains.
🛣️ Road Conditions: May be closed due to lava activity. Check current conditions.
📱 Cell Service: Very limited. Emergency phone at Isaac Hale Beach Park.
⚠️ Special Warnings: Lava viewing areas can be dangerous. Stay on marked paths.
🌊 Tide Considerations: Coastal hot ponds best accessed at low tide.

Secret Stop – Ahalanui Hot Pond: This volcanically heated pond offers perfect temperature for soaking while watching waves crash nearby. Local Tip: Visit during weekdays when locals outnumber tourists.

Best Photo Spots

• Kehena Black Sand Beach: GPS 19.362222, -154.917778 | Best light morning 7-10 AM | Camera settings f/5.6, 1/160s, ISO 200
• MacKenzie State Park: GPS 19.437778, -154.864444 | Best light late afternoon | Camera settings f/8, 1/125s, ISO 400
• Ahalanui Hot Pond: GPS 19.474444, -154.849444 | Best light early morning | Camera settings f/5.6, 1/100s, ISO 400

Instagram angles: Black sand beach contrasts, tree tunnels, lava rock meets ocean views.
Equipment tips: Underwater camera/housing for tide pools, wide-angle lens for tree tunnels.

Saddle Road: Big Island’s Cross-Island Adventure

Planning

• Total Distance: 55 miles cross-island
• Estimated Fuel Cost: $25-35
• Best Start Time: 9:00-10:00 AM (clear weather)
• Difficulty Level: Moderate
• Required Gear: Emergency kit, warm clothes, water, food, flashlight

Saddle Road (Daniel K. Inouye Highway) crosses the Big Island between Mauna Kea and Mauna Loa, offering otherworldly landscapes. This 55-mile route feels like driving on Mars.

Local Warning

🌊 Flash Flood Risk: LOW – Desert-like conditions, but sudden weather changes.
🛣️ Road Conditions: Fog and rain common, wild animals on road, no services.
📱 Cell Service: Little to no service for 40+ miles.
⚠️ Special Warnings: Carry emergency supplies. Weather changes rapidly with elevation.
🌊 Tide Considerations: N/A – Cross-island mountain route.

Secret Stop – Pu’u Huluhulu: This volcanic cinder cone offers easy hiking with panoramic views of both massive volcanoes. The 20-minute trail leads to a summit where you can see from ocean to ocean on clear days.

Best Photo Spots

• Pu’u Huluhulu Cinder Cone: GPS 19.724167, -155.464444 | Best light 7-9 AM (clear weather) | Camera settings f/8, 1/250s, ISO 200
• Mauna Kea Access Road View: GPS 19.764722, -155.460000 | Best light golden hour | Camera settings f/11, 1/125s, ISO 200
• Stargazing Point: GPS 19.782778, -155.507222 | Best light astronomical twilight | Camera settings f/2.8, 15s, ISO 3200

Instagram angles: Mountain silhouettes, starry night photos, rolling fog/clouds, Mauna Kea observatories. Equipment tips: Tripod essential for night photography, wide-angle lens (14mm or wider), remote shutter release.

Kamehameha Highway: North Shore Legend

Planning

• Total Distance: 30+ miles
• Estimated Fuel Cost: $20-25
• Best Start Time: 8:00-9:00 AM
• Difficulty Level: Easy
• Required Gear: Swimwear, camera, water, snacks

Kamehameha Highway from Honolulu to Haleiwa showcases Oahu’s famous North Shore. This route passes legendary surf breaks and hidden beaches locals treasure.

Local Warning

🌊 Flash Flood Risk: LOW – Well-maintained coastal highway.
🛣️ Road Conditions: Heavy traffic in winter surf season.
📱 Cell Service: Good coverage throughout.
⚠️ Special Warnings: Respect surf culture. Don’t park in local spots. Big winter waves dangerous.
🌊 Tide Considerations: Surf breaks best at various tides – check surf reports.

Secret Stop – Waimea Valley Hidden Falls: Beyond famous Waimea Falls lies a network of trails leading to smaller waterfalls where locals swim. Take the unmarked trail past main falls for 30 minutes to find “Fairy Pool Falls”.

Best Photo Spots

• Sunset Beach (Winter): GPS 21.679722, -158.040556 | Best light 3-5 PM (winter) | Camera settings f/8, 1/400s, ISO 200
• Shark’s Cove: GPS 21.652222, -158.062500 | Best light morning light | Camera settings f/11, 1/125s, ISO 200
• Waimea Bay Rock Jump: GPS 21.641944, -158.065833 | Best light midday | Camera settings f/5.6, 1/500s, ISO 400

Instagram angles: Surfer silhouettes, big wave action shots, shrimp truck food portraits, palm tree frames. Equipment tips: Telephoto lens (70-200mm) for surf shots, camera bean bag for railing support, underwater housing.

Coastal Drives Comparison Table

Drive Name	Difficulty Level	Best For	Drive Time	Highlights	Best Season
Road to Hana (Maui)	Moderate	Waterfalls, Beaches, Adventure	3-4 hours one-way	600+ curves, 54 bridges, bamboo forest	Year-round (drier Apr-Oct)
Chain of Craters Road (Big Island)	Easy-Moderate	Volcanic Landscapes, Geology	2-3 hours round trip	Active volcano, lava flows, sea arch	Year-round (avoid eruptions)
Tantalus Drive (Oahu)	Easy	City Views, Quick Escape	1-2 hours loop	Panoramic Honolulu views, treehouse	Year-round (clearest winter)
Hamakua Coast (Big Island)	Easy	Waterfalls, Scenic Coastal Views	2-3 hours one-way	Rainbow Falls, dramatic coastline	Year-round (rainbows after rain)
Na Pali Coast (Kauai)	Challenging	Dramatic Cliffs, Photography	45 min (accessible portion)	Emerald cliffs, Kalalau Valley views	Summer (calmer seas)
Kalanianaole Highway (Oahu)	Easy	Coastal Views, Snorkeling	1.5-2 hours one-way	Blowhole, tide pools, monk seals	Year-round (whale season winter)
West Maui Coastal Loop	Challenging	Remote Beaches, Adventure	4-6 hours complete loop	Nakalele Blowhole, cliff edges	Summer (calmer conditions)
Red Road/Route 137 (Big Island)	Moderate	Hidden Gems, Black Sand Beaches	45 min-1 hour one-way	Red cinder road, secret swings	Year-round (check lava activity)
Saddle Road (Big Island)	Moderate	Cross-Island Transit, Stargazing	2.5 hours cross-island	Between two massive volcanoes	Year-round (avoid rain/fog)
Kamehameha Highway – North Shore (Oahu)	Easy	Surfing Culture, Food Trucks	2-3 hours one-way	Pipeline, Sunset Beach, shrimp trucks	Winter (big waves), Summer (calm)

Pro Tips for Coastal Drive Success

Timing is Everything: Drive counter-clockwise on Oahu to avoid traffic and catch better lighting. On other islands, start early (6-7 AM) when trade winds are calmest.

Respect Local Culture: When encountering local surfers or fishermen, give them space. A simple “shaka” (hang loose hand gesture) acknowledges island respect.

Road Conditions Matter: Hawaiian coastal roads can change quickly due to weather. Download offline maps and check local conditions before departing.

Local Etiquette: Let faster drivers pass—it’s the aloha way. Horn honking is considered extremely rude unless warning of immediate danger.

As we say here in Hawaii, “Pau hana time is the best time” (after work is the best time). These coastal drives reveal why Hawaii isn’t just a destination—it’s a way of life that changes everyone who experiences it authentically. Each road tells stories of volcanic birth, cultural resilience, and natural beauty existing nowhere else on Earth.

The secret isn’t just knowing where to go, but understanding how to travel with aloha—respect for the land, ocean, and people who call these islands home. These drives will show you Hawaii’s true spirit, far beyond any resort or tour bus experience.

I've lived on Oahu for over three decades and explored every island countless times. These aren't your typical tourist routes—I'm talking about drives where you'll discover waterfalls hidden behind bamboo groves, secret beaches locals guard fiercely, and viewpoints that'll give you chicken skin.

After personally driving these routes dozens of times, here's everything you need to know about Hawaii's most breathtaking coastal drives, complete with insider knowledge most visitors never find.