Sea caves of Tonga
Hot Spring Cave (Ofalanga)
- Max depth28 m
- CertificationCavern
Diving and fills
Dive here with
The dive
Sponges and corals grow around the entrance. Inside, a hydrothermal vent gushes hot water into the cooler water of the chamber. Practical: Matafonua Lodge on Foa can arrange the dive.
The entrance is already at 25 m and the chamber goes to 28 m, deeper than the 18 m of an Open Water certification: bottom time is short, plan gas and no-deco time for it.
Profile and sections
Sponges and corals grow around the entrance. Inside, a hydrothermal vent gushes hot water into the cooler water of the chamber.
Practical: Matafonua Lodge on Foa can arrange the dive.
- Depth and profile
- Entrance at 25 m, the main chamber goes to 28 m, with a 15 m high ceiling.
- Configuration
- Large, deep cavern: recreational gear with a torch, within your no-deco time (estimate).
Who can dive where
- At least Cavern
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 28 m (trimix or deco may be needed)
Entry or dive feeThrough 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
At Ofalanga Island in Ha'apai, by boat; Matafonua Lodge can arrange the dive trip.
Around Hot Spring Cave (Ofalanga)
FillsNo fill station known nearby
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Marcel finds the sites that match your team's certifications.
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