Cat Ba National Park covers 17,362.96ha, two thirds of Cat Ba Archipelago, and is home to more than 3,150 species on land and at sea. This is a remarkable park combining many different ecosystems: evergreen forest on limestone mountains, freshwater swamp forest high in the mountains (Ao Ech), coastal mangrove forest, inshore coral reefs, and a distinctive karst cave system. Exploring Cat Ba National Park, admiring the Kim Giao forest with its endless straight trunks, and conquering Ngu Lam Peak offer one of the most beautiful and unique vantage points over the layered mountain scenery of Cat Ba.