Richelieu Rock (★4.7)
Richelieu Rock is one of the most popular dive sites in Surin Islands National Park. It is a limestone reef that rises almost vertically from a depth of 35 meters, and appears only at low tide, about 1 meter above the surface.
The giant moray (Gymnothorax javanicus) is one of the largest and most recognizable eel species in the ocean, reaching lengths of up to 3 meters and weighing over 30 kg. Found across the Indo-Pacific, this eel thrives in coral-rich environments where it hides in reef crevices by day and emerges at night to hunt. With its thick, muscular body, leopard-like pattern, and wide mouth, the giant moray is both intimidating and beautiful. Despite its fearsome appearance, it is non-aggressive to divers unless provoked or fed—something that should always be avoided.
