Siete Pecados
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.
Siete Pecados, a cluster of seven islets guarding the channel near Coron town, is the local proof that protection pays. Its shallow gardens hold some of the healthiest nearshore coral in the area, dense fields of branching and table species busy with damselfish, wrasse, parrotfish, and juvenile everything, plus giant clams parked like anvils and turtles drifting through the seagrass margins. For divers it works as a warm-up, a shallow second dive after the deep fleet, or a long unhurried macro potter; for snorkelers it is the main event. Wardens patrol, fees are collected, and the reef visibly repays both.
The moment you come for: Thriving shallow coral, giant clams and turtles, the area's best snorkel-diving overlap
Topography: Shallow coral gardens around seven rocky islets
Entry: Minutes from Coron town between Coron Island and the mainland; heavily used by snorkel tours at midday.
Know before you splash
Hazards: Snorkeler and banca traffic overhead; shallow surge on windy afternoons.
Conservation: A locally managed marine park with wardens and per-visitor fees; fins up over the coral, always.
Who you'll meet
Christmas Tree Worm
Clownfish & Anemonefish
Giant Clam
Green Sea Turtle
Porcupinefish
For photographers
Wide angle: ★★★★☆ · Macro: ★★★☆☆ — editors' 1–5 rating of what this site gives each style of shooting