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Natural occurring fluorescence in underwater tube sea anemone (Ceranthidae) unidentified species. Night dive at Kalabahi Bay, Alor Island, Indonesia

Clown Valley

Reef 5–25 m Intermediate Alor, Indonesia
Photo: Stuart Westmorland/Danita Delimont · Adobe Stock
Documented Also known as: Anemone City
Depth
5–25 m / 16–82 ft
Typical depth
14 m / 46 ft
Visibility
15–30 m / 49–98 ft
Water
22–27 °C / 72–81 °F
Current
Moderate
Access
Boat
Best months
Apr–Nov
Recommended cert
Open Water
Typical dive
~55 min

Depth is the range from the top of the site to its usual maximum; "recommended cert" is the mainstream-agency level operators usually ask for, not a legal rule. Currents and visibility change daily, so treat everything here as planning ranges.

Clown Valley sounds like exaggeration until the slope comes into view: hectares of seafloor carpeted in host anemones, tentacle to tentacle, rolling with the surge like a single organism. Anemonefish of several species defend territories every meter or two, producing a comedy of tiny outrage in every direction, and porcelain crabs and shrimp sublet the fringes. The cold, rich water that blankets Alor keeps the carpet expanding, and nobody has offered a fully satisfying explanation for its density. It photographs like nothing else in Indonesia, wide-angle abundance built from macro subjects. Divers surface half-laughing; the site does not really have a comparison group.

The moment you come for: An anemone carpet of absurd extent; anemonefish in their hundreds; a genuinely one-off seascape.

Topography: A broad slope off Pura island covered almost continuously in host anemones.

Current: The slope faces the strait, so a watchful drift is normal even on quiet tides.

Know before you splash

Hazards: Stinging anemones cover the bottom, and cool thermoclines cross the slope; gloves are no substitute for not touching.

Conservation: The carpet is the attraction and the hazard's mirror: there is nowhere neutral to touch down, so buoyancy must be dialed in before arrival.

Who you'll meet

Also recorded nearby

"Charted here" species were listed by our editors from the sources on this page. Counts are GBIF occurrence records: observations logged within about 5 km of the charted position since 1990, matched only against the species in our catalogue. They show what has been seen there, not a promise of what you will see.

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Wide angle: ★★★★★ · Macro: ★★★★☆ (editors' 1–5 rating of what this site gives each style of shooting)

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