Niihau and Na Pali Coast Snorkel Cruise: 7-Hour Lehua Crater Adventure from Port Allen
Difficulty
moderate
Duration
7 hours
Fitness Level
Comfortable standing and moving on a rocking deck and capable of swimming/snorkeling in open ocean conditions.
Overview
Go beyond Na Pali on a 7-hour ocean crossing to Lehua Crater and the waters off Niihau. This ambitious catamaran cruise adds world-class snorkeling and rare wildlife to Kauai’s most iconic coastline—without sacrificing comfort or safety.
Niihau and Na Pali Coast Snorkel Cruise: 7-Hour Lehua Crater Adventure from Port Allen
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First light spills across Port Allen as the catamaran’s twin hulls purr against the dock. Trade winds stir, testing your balance and hinting at the water’s mood. Minutes later, Kauai’s southwest coast slides by and the Na Pali Coast rises ahead, 4,000-foot ramparts leaning into the sky as if to size you up. Waterfalls thread the cliffs, sea caves breathe with the swell, and spinner dolphins rush the bow like mischievous escorts daring the boat onward.
Adventure Photos
Adventure Tips
Pre-game seasickness prevention
Take an over-the-counter remedy before boarding; the Kaulakahi Channel can be choppy even on sunny days.
Wear reef-safe lotion sunscreen
A long-sleeve rash guard plus reef-safe lotion protects you and the sanctuary—spray sunscreens are not allowed aboard.
Bring a light windbreaker
Trade winds can whip across the channel; a packable shell keeps you warm during fast runs and wet decks.
Snorkel smart, give wildlife room
Maintain distance from turtles, monk seals, and dolphins; follow crew instructions and never chase animals.
Local Insights
Wildlife
- Spinner dolphins
- Hawaiian monk seals
History
Niihau is privately owned by the Robinson family and has preserved Hawaiian language and traditions; Na Pali’s valleys once supported thriving communities connected by canoe.
Conservation
Lehua Crater is a State Wildlife Sanctuary; keep distance from seabirds and marine life, and use reef-safe sunscreen to protect fragile ecosystems.
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Adventure Hotspots in Koloa
Frequently Asked Questions
Recommended Gear
Reef-safe sunscreen (non-aerosol)
Protects your skin and the fragile reef; sprays are prohibited on board.
Motion sickness remedy
The channel crossing can be bumpy; take it in advance for best effect.
Quick-dry towel
Essential for warming up after your snorkel and between wet decks and shade.
Light windbreaker or spray jacket
Cuts wind chill on fast runs and keeps you comfortable if seas turn rough.
winter specific