DiveTripPlanner
Sign in

Hawaii

First Cathedral (Lanai)

  • Max depth17 m (56 ft)
  • CertificationOpen water / no overhead

What it looks like

All 4 videos and posts

Videos and posts

From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.

Search for more onYouTube ↗Instagram ↗Facebook ↗

Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.

The dive

A lava tube that looks like a cathedral inside.

Profile and sections

A lava tube that looks like a cathedral inside.

Depth and profile
At ~17 m (55 ft): a large cavern lit through holes in the ceiling. You leave it through 'the shotgun', a lava chute at the back.
Configuration
Large cavern with daylight and several exits: recreational gear (estimate).
Who can dive where
  • CaveAt least Open water / no overhead
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 17 m (trimix or deco may be needed) · doesn't decide who may dive
Through a dive centre or guide

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

Boat trip from Maui (~45 minutes from Mala Ramp) with a dive centre; Open Water, aged 14 and up and a dive in the last 18 months.

Plan your route ↗

Around First Cathedral (Lanai)

FillsNo fill station known nearby
Other sites1

Going to Hawaii with your team?

Marcel finds the sites that match your team's certifications.

Plan a trip
Something wrong, or do you know more?Depth, access, parking, the current situation: let us know.
Sources, sharing and disclaimer

Share

Link to this page

Put this cave on your own site

Paste the code into an HTML block on your website. The block stays up to date by itself and sets no cookies.

Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Oct 2026): the websites of Jack's Diving Locker, Kona Honu Divers (Jan 2026), Dive Maui and Seasport Divers, information from Extended Horizons (e-mail, Nov 2026), and West Hawaii Today and Civil Beat (2017–2018) on the chamber. No site has a published pin. These are guided boat dives into lava tubes, caverns and arches; the requirements come from the dive centres. Certification and configurations are estimates.