The only way to get to Diep Son Island is by a boat from Van Gian Wharf located in Van Gia Town, which is about 70km from Nha Trang or from Nha Trang Bay. You can either a) join a 1, 2, or 3 day tour which can be arranged in Nha Trang, b) take a bus from Nha Trang to Van Gia Town and then a Xe Om to the wharf, c) or just ride a motorbike to Van Gia wharf. If you are a foreigner and planning on coming to Diep Son, please bring your passport or government issue ID as you will need to register with the local police, located next to the wharf.
From Van Gia Wharf you can take a new speedboat (tel: 01695742679), which usually departs whenever there are at least 10 people. The trip only takes 20 minutes and there are many departures throughout the day in the dry season however most people arrive around 8am. There are also 2 speedboats which can accommodate up to 20 people each. In the past tourists were able to take a local boat, the “Phuong Dong Boat“, however the boat cannot handle the new found popularity of the island and all passengers are forced to take the speedboat, which costs 200,000VND per round trip.