Most-reviewed trip
Koloa Zipline
Koloa Zipline in Kauai runs through Koloa Zipline. Rated 5.0 across 7,558 reviews. Runs 3 hours (approx.). From $169.63.
From late fall through April, humpback whales return to Kauai in numbers while north shore swells grow (see When Not To Go). Together, those two shifts shake up the island's boat schedule. Many Na Pali trips shift to west-side departures such as Port Allen, where conditions stay more dependable. On land, Waimea Canyon, luaus and helicopter flights carry on much as usual.
Every tour below runs through the winter months, from dedicated whale watches to sunset dinner sails along the Na Pali Coast. Prices start at $137 for a two-hour whale watching adventure with Captain J's, while a cocktail cruise aboard 'Imiloa comes in from $135.90. Larger catamarans and power boats handle winter seas well, and each listing carries free cancellation if the ocean has other plans.
Most-reviewed trip
Koloa Zipline in Kauai runs through Koloa Zipline. Rated 5.0 across 7,558 reviews. Runs 3 hours (approx.). From $169.63.

1 hour 5 minutes (approx.) · Air Ventures Hawaii
from $159per personKauai Airplane Tour: Na Pali Coast, Waterfalls & Window Seats runs through Air Ventures Hawaii. Rated 4.8 across 2,105 reviews. Runs 1 hour 5 minutes (approx.). From $159.
Check availability →
50 minutes (approx.) · Blue Hawaiian Helicopters - Kauai
from $489per personKauai Eco Adventure Helicopter Tour runs through Blue Hawaiian Helicopters - Kauai. Rated 4.8 across 2,065 reviews. Runs 50 minutes (approx.). From $489.
Check availability →
5 hours (approx.) · Makana Charters
from $227.13per personKauai: NaPali Boat Tour on the Amelia K runs through Makana Charters. Rated 4.9 across 2,052 reviews. Runs 5 hours (approx.). From $227.13.
Check availability →
4 to 6 hours (approx.) · Luau Kalamaku
from $186.52per personKauai: Luau Kalamaku with Buffet Dinner and Show runs through Luau Kalamaku. Rated 4.3 across 1,830 reviews. Runs 4 to 6 hours (approx.). From $186.52.
Check availability →
4 hours 30 minutes (approx.) · Alii Kayaks, LLC
from $135per personKauai: Secret Falls Kayak and Hike runs through Alii Kayaks, LLC. Rated 4.8 across 1,660 reviews. Runs 4 hours 30 minutes (approx.). From $135.
Check availability →
3 hours (approx.) · Lydgate Farms Kauai Chocolate
from $145per personKauai Chocolate Farm Tasting Tour runs through Lydgate Farms Kauai Chocolate. Rated 4.9 across 1,107 reviews. Runs 3 hours (approx.). From $145.
Check availability →
2 hours (approx.) · Z Tourz
from $119.80per personKauai’s Ultimate Guided Shore Snorkel (NO BOAT) in South Poipu runs through Z Tourz. Rated 4.8 across 951 reviews. Runs 2 hours (approx.). From $119.8.
Check availability →
3 hours (approx.) · Princeville Botanical Gardens
from $126per personPrinceville Botanical Gardens Tour and Chocolate Tasting Ticket runs through Princeville Botanical Gardens. Rated 4.8 across 884 reviews. Runs 3 hours (approx.). From $126.
Check availability →
4 hours (approx.) · Keko Adventure Tours
from $173.82per personWaimea Canyon Downhill Bike Ride runs through Keko Adventure Tours. Rated 4.9 across 705 reviews. Runs 4 hours (approx.). From $173.82.
Check availability →
2 hours (approx.) · Kauai Beach Boys
from $114.14per personKalapaki Kai Sunset Catamaran Cruise runs through Kauai Beach Boys. Rated 4.9 across 486 reviews. Runs 2 hours (approx.). From $114.14.
Check availability →
2 hours (approx.) · Kauai Sea Tours
from $135.90per personKauai: Whale Watch Cocktail Tour aboard 'Imiloa runs through Kauai Sea Tours. Rated 4.7 across 422 reviews. Runs 2 hours (approx.). From $135.9.
Check availability →
1 hour 30 minutes (approx.) · Hoku Water Sports
from $93.19per personPo'ipu Surf Lesson runs through Hoku Water Sports. Rated 4.9 across 414 reviews. Runs 1 hour 30 minutes (approx.). From $93.19.
Check availability →
2 hours (approx.) · Captain J's Kauai Offshore Adventures
from $137per personWinter Whale Watching Adventure in Kauai runs through Captain J's Kauai Offshore Adventures. Rated 4.7 across 355 reviews. Runs 2 hours (approx.). From $137.
Check availability →
6 to 7 hours (approx.) · Polynesian Adventure Tours
from $208.90per personKauai Highlights & Movie Sites runs through Polynesian Adventure Tours. Rated 4.5 across 242 reviews. Runs 6 to 7 hours (approx.). From $208.9.
Check availability →
8 hours to 1 day (approx.) · GuideAlong (GyPSy Guide)
from $19.99per group (up to 8)Self-Guided Kauai Island Driving Audio Tour runs through GuideAlong (GyPSy Guide). Rated 4.7 across 241 reviews. Runs 8 hours to 1 day (approx.). From $19.99.
Check availability →
2 hours 30 minutes (approx.) · Dive Kauai
from $186.13per personKauai's Ultimate Discover Scuba Dive - OCEAN EXPERIENCE (1 Tank Dive) runs through Dive Kauai. Rated 4.8 across 207 reviews. Runs 2 hours 30 minutes (approx.). From $186.13.
Check availability →
2 hours 30 minutes (approx.) · Z Tourz
from $158.43per personKauai's South Side Whale and Dolphin Zodiac Boat Adventure runs through Z Tourz. Rated 4.5 across 168 reviews. Runs 2 hours 30 minutes (approx.). From $158.43.
Check availability →
5 hours (approx.) · Explore Kauai Scuba
from $1,300per group (up to 6)Private Whale Watch and Snorkel off Kaua'i runs through Explore Kauai Scuba. Rated 5.0 across 5 reviews. Runs 5 hours (approx.). From $1300.
Check availability →The main winter variable is surf. Higher north swells from October to April mean smaller Zodiac rafts get cancelled more often, especially trips that enter sea caves. The Niihau and Lehua snorkel runs, like the 8-hour Holo Holo tour from $361.31, depend on harbor and sea conditions on the day. Booking a raft? Build a backup day into your plans.
Bigger vessels are the steadier winter bet. The Amelia K from Makana Charters, rated 4.9 across 2052 reviews, and the Lucky Lady snorkel cruise from $233.74 both sail out of Port Allen and sit higher in the water. Sunset sails such as the Leila dinner run from $263.82 also depart the west side. Helicopter and airplane tours, including doors-off flights from $402.09, ignore ocean swell entirely.
Book whale watching early in your stay rather than late, so a weather scratch leaves room to retry. The cocktail whale watch from $135.90 and the winter whale adventure from $137 both last about two hours, easy to fit around other plans. Keep at least one flexible morning for any Zodiac booking. Every tour here offers free cancellation, so reserve ahead and adjust if the swell arrives.