Most-reviewed trip
Alii Kayaks Secret Falls
Kauai: 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.
Kauai hiking is mostly about water, and the guided options here reflect that. All six tours in this category end at a falls, whether that is a short walk with a swim, a private jungle trek, or a guided hike paired with a dip under the cascade. Operators keep groups small and supply local knowledge you would miss on your own.
The lineup below covers a wide spread. Two waterfall hikes start at $93.19 per person, one from Kauai Beach Boys rated 4.8 across 79 reviews and one from Da Life Outdoors rated 4.9 across 121 (see Hardest Kauai Hikes). A private Secret Waterfall tour with photos runs $250, and the full jungle adventure with True Hawaiian sits at $805. Every listing carries free cancellation.
Most-reviewed trip
Kauai: 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.

5 hours (approx.) · Duke's Kayak Adventures
from $150per personKauai Adventure: Kayak & Hike to Secret Falls with Expert Guide runs through Duke's Kayak Adventures. Rated 4.8 across 1,488 reviews. Runs 5 hours (approx.). From $150.
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4 to 6 hours (approx.) · True Hawaiian
from $805per group (up to 4)Private Jungle Waterfall Adventure, Wit Da Native Hawaiian Dundee runs through True Hawaiian. Rated 5.0 across 143 reviews. Runs 4 to 6 hours (approx.). From $805.
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1 hour 30 minutes to 2 hours (approx.) · Da Life Outdoors
from $93.19per personPrivate Waterfalls Hike and Swim in Lihue runs through Da Life Outdoors. Rated 4.9 across 121 reviews. Runs 1 hour 30 minutes to 2 hours (approx.). From $93.19.
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2 hours · True Blue Inc. dba Kauai Beach Boys
from $93.19per personKauai: Guided Hike and Waterfall Swim runs through True Blue Inc. dba Kauai Beach Boys. Rated 4.8 across 79 reviews. Runs 2 hours. From $93.19.
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3 hours (approx.) · Adventure tours
from $250per personThe Secret Waterfall Private tour with photos runs through Adventure tours. Rated 4.6 across 64 reviews. Runs 3 hours (approx.). From $250.
Check availability →Time and budget drive most decisions here. If you want a quick two-hour outing with a swim, the guided hike from Kauai Beach Boys fits. Families or couples who prefer nobody else along should look at the private options from Da Life Outdoors or True Hawaiian, the latter running four to six hours for guests who want the deep-jungle version of the day.
For a fuller day, True Hawaiian's jungle adventure is the outlier in every sense: a 5 rating across 143 reviews, the longest duration, and a guide whose framing is cultural rather than purely scenic. It suits hikers who want interpretation and storytelling, not just a route to a swimming hole. All four tours carry free cancellation, so the lower-cost options work well as a flexible first booking while you settle your wider island plans.
Hiking slots on Kauai sell out ahead of peak travel windows, and private guides keep limited calendars, so reserve early once your dates are fixed. All four tours allow free cancellation, which means you can lock a spot months out and adjust later if weather or plans shift. Morning starts are the norm, since afternoon rain is common on the wetter sides of the island.