Nusa Lembongan

Nusa Lembongan lies southeast of Bali within the Nusa Penida Marine Protected Area, a high-energy seascape shaped by strong tides, seasonal upwelling, and the Indonesian Throughflow. Its dive sites include sloping coral reefs, walls, cleaning stations, and current-driven drift routes supporting reef fishes, sea turtles, manta rays, and seasonally observed giant sunfish. Coral reefs, mangroves, and seagrass beds form interconnected habitats throughout the protected area, where nearly 300 coral species have been recorded. Conditions can change rapidly as cold, nutrient-rich water rises from depth, making some sites best suited to divers experienced with strong currents and sudden temperature shifts.

Fun Fact: Submarine groundwater discharge, the movement of groundwater through the seabed into coastal waters, has been documented along Indonesian coastlines. It may involve fresh terrestrial groundwater, recirculated seawater, or a mixture of both, and can transport nutrients and other dissolved substances into marine ecosystems.