Seraya Secrets
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 — treat everything here as planning ranges.
Seraya Secrets put Bali on the muck-diving map. The slope looks barren for the first minute, then a guide's pointer starts conjuring animals out of the sand: harlequin shrimp working a starfish arm, frogfish the size of a thumbnail, ghost pipefish swaying beside a crinoid, boxer crabs waving their anemone pom-poms. This is patient, shallow, long-duration diving where dive time is limited by chill and memory-card space rather than depth. Seasonal celebrities include rhinopias and tiger shrimp, and the site remains productive when swell shuts down the Liberty. For macro photographers it is one of the island's highest-yield hours underwater.
The moment you come for: Harlequin shrimp with reliability few sites match; frogfish and ghost pipefish; long easy profiles.
Topography: Gentle black-sand slope with scattered rubble patches, sponges, and purpose-sunk fixtures that shelter critters.
Entry: Simple beach entry in front of the Seraya resorts a few minutes south of Tulamben.
Know before you splash
Hazards: Scorpionfish and stinging hydroids underfoot on entry; otherwise among Bali's most benign dives.
Conservation: Muck etiquette applies: no moving or baiting animals, and mind strobe time on small subjects.
Who you'll meet
Frogfish
Harlequin Shrimp
Nudibranchs
Ornate Ghost Pipefish
Peacock Mantis Shrimp
Seahorses
For photographers
Wide angle: ★☆☆☆☆ · Macro: ★★★★★ — editors' 1–5 rating of what this site gives each style of shooting