Karimun Java is an Indonesian archipelago in the Java Sea. It’s known for Karimun Java National Park, a marine conservation area with mangrove forests, beaches and coral reefs. Sea turtles inhabit the waters around the islands, while deer and pangolin can be seen on land. Dive sites include a wreck near Kemujan Island. The largest island, Karimunjawa, has views of the archipelago from its highest point.