KOLOA BOAT RENTAL FIELD GUIDE
Three Dives to the Forbidden Island: A Full‑day Boat Adventure from Koloa to Niʻihau
A guided, 11‑hour boat dive run by Fathom Five Divers that makes three dives around Niʻihau and nearby Lehua, useful for planning timing, depths, and what the operator provides.
Three Dives to the Forbidden Island: A Full‑day Boat Adventure from Koloa to Niʻihau.
Fathom Five Divers runs a one‑of‑a‑kind, full‑day boat diving excursion from Koloa to the forbidden island of Niʻihau and its moon‑shaped neighbor Lehua. The trip centers on three guided dives in remote, clear Hawaiian water aboard a custom‑built dive boat, and includes a light breakfast and snacks for the day.
Highlights
Outing Highlights
Custom 38' Dive Platform Built for Hawaiian Water
Fathom Five runs the trip on a 38‑foot dive boat designed for comfort and small groups, with full shade options and amenities intended to make long days offshore more comfortable.
Three Guided Dives Across Progressive Depths
The itinerary comprises three guided dives at progressively shallower depths—first roughly 85–105 feet, then 60–85 feet, and finally 45–65 feet—allowing divers to experience a range of underwater terrain and conditions.
Remote Access to Niʻihau and Lehua
This outing affords access to Niʻihau and nearby Lehua, offering some of the operator’s most prized dive sites with fewer people than other operators visit.
What the day feels like
What the Day Feels Like
It’s an early start and an all‑day affair: the boat heads out from the Kauaʻi coast to Niʻihau’s waters for three guided dives, with a light breakfast and snacks served aboard so divers can focus on the dives and the remote marine environment.
Suitability
Who it's for
Who this trip suits — and who should reconsider.
Practical planner
Details to review before reserving
Operates mid‑May through September on Mondays and Thursdays with a 6:00 a.m. departure; total trip duration is approximately 11 hours.
A light breakfast and snacks are provided aboard the boat; the vessel includes amenities such as shade options and camera rinse tanks for dive photography.
Bring any personal dive equipment and cameras you plan to use; the operator lists camera rinse capability aboard the boat.
Review cancellation policies before reserving.
Frequently asked questions
Planning Your Outing
How long is the trip?
The outing is an approximately 11‑hour boat day.
When does the trip run?
Trips operate mid‑May through September on Mondays and Thursdays with a 6:00 a.m. departure.
What age is allowed to participate?
Participants must be at least 15 years old.
How many dives and how deep are they?
The trip includes three guided dives: the first around 85–105 feet, the second 60–85 feet, and the third 45–65 feet.
Where does the boat go?
The boat transits to the waters around the Forbidden Island of Niʻihau and nearby Lehua for the dives.
What amenities are on the boat?
The operator’s 38‑foot dive boat offers full shade options, navigation systems, entertainment features, and camera rinse tanks; a light breakfast and snacks are provided.