How you can travel from Cai Rong (Van Don) to Co To Island?
The only way how to get there is to take a boat/ferry in Cai Rong port or in the Quan Lan Island.
Book and buy ferry tickets from Cai Rong (Van Don) to Co To Island.
From July 15, 2016 foreign tourist are allowed to visit this island without any permitt. Read this article about this information (I recommend to check this information before you come to this island). You will find there some beautiful beaches with clean ocean water in Co To Island. There are also restaurants, waterpark, accommodation is possible in hotels.