Diving from Phuket: what to know
Which day trip should you take?
Three of the four run all year; only the Similan day has a season.
What is the Similan day?
The Similan Islands day trip is a dive expedition for certified divers, from ฿4,900 per person including the boat, two dives and all meals on board. The Similan National Park runs only 15 October to 15 May; the boat stops for the monsoon. On Sundays and Wednesdays it goes to Koh Bon, known for manta rays; the other five days go to the Similan Islands themselves.
What does the ฿4,900 include?
Transport from Patong, Karon, Kata and south Khao Lak, the speedboat and captain, two full dives, breakfast, lunch, soft drinks and snacks. Equipment rental is extra: ฿150–500 per item. Most divers bring at least a mask and fins and rent the rest on the boat.
Important
the ฿700 national park fee is cash, paid on the boat — budget for it separately.
Where do you dive that day?
Similan Islands (Mon–Tue, Thu–Sat): coral formations, soft corals, kelp gardens and the granite boulders the islands are named for, with varied fish life. Koh Bon (Sun and Wed): known for manta ray encounters when the plankton is thick, and used for rescue training, because the site drops away into open blue water.
How long is the day?
Twelve and a half hours in all: pickup between 06:00 and 06:30 (07:45 from south Khao Lak), the speedboat leaves at 08:30 and you are back at the hotel by 18:30. The first dive is around 10:00, the second around 13:00 after lunch on board. Come rested.