The Sugud Islands Marine Conservation Area (SIMCA) protects marine life in Borneo. It covers 467 km² and includes three key islands: Lankayan, Tegaipil, and Billean. SIMCA has a strict ‘no-take’ policy to prevent harmful fishing practices. The area is crucial for endangered turtles, with nightly patrols to safeguard their eggs. Scuba diving is regulated to ensure enjoyment and conservation, with eco-friendly practices in place.