Dive-center fun-dive page describing Green Island coral coverage and year-round visibility.
Shore cave-and-reef dive on Green Island
Shore cave-and-reef dive on Green Island
A local Green Island operator helps with tide timing and route selection.
Confucius Rock is a shore cave-and-reef dive on Green Island, with an intertidal start, a shallow reef maze, and a tunnel route that rewards careful tide timing. It is the kind of site that works best for training dives and relaxed exploration when the sea is calm enough to keep the entrance readable. The appeal is a compact route with plenty of coral texture and small reef life.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
8m - 28m
Depth Note
The route starts in the intertidal zone and runs from roughly 8m down to 25m+ depending on the line chosen.
Best Season
Year-round
Typical Conditions
Tide-sensitive shore conditions with calm-water windows, a shallow reef profile, and a route that is easiest at high tide.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Start only in suitable tide and visibility, and treat the cave or tunnel sections conservatively if you are not trained for overhead diving.
Access Restrictions
Shore access comes via the trail at the hot-spring village side of the road, and high tide is easier for the first entry.
Legal Notes
Use the designated shore route and respect the local coastal and marine-area rules.
Community notes to help plan your visit.
Scuba Diving
Shore dive with an intertidal start, then reef, rift, and tunnel sections that can be explored on a conservative line.
Freediving
The shallow entry and reef sections can work for relaxed freedive looks only when tide and surge are calm.
Snorkeling
This is one of the clearer snorkel-friendly Green Island spots on calm days, but the cave route should still be treated carefully.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Dive-center fun-dive page describing Green Island coral coverage and year-round visibility.
Official tourism page describing the Confucius Rock shoreline and its sea-eroded form.
Independent Green Island guide describing the shallow water, shore access, and dive belt.
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Boulder maze with swim-throughs and rich reef life.