The island belongs to northern city of Hai Phong. It has a wide variety of natural ecosystems, both marine and terrestrial, and is highly biodiverse.
The different natural habitats found on Cat Ba Archipelago include limestone karsts, tropical limestone forests, coral reefs, mangrove and sea grass beds, lagoons, beaches, caves and willow swamp forests.
"For those that are tempted to be in the water but have no desire to swim or surf – then perhaps grabbing a canoe and kayaking down a river would be a great idea to keep fit,"