Ðảo Cát Bà

The town on Cat Ba Island, the largest of 366 islets and islands making up the Cat Ba Archipelago.
Cat Ba Island is a National Park and when we visited had very limited facilities for visitors.   Some more recent visitors tell me it now has multi storey hotels. 
One of several beaches, this one is reached by means of a tunnel.  The owner has been known to demand payment for access.
The island was devoid of visitors in March 1994, the  primitive accommodation, lack of amenities and the unrelenting rain drove us back to the mainland after only one night.