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About Bay of Bangkok

The Bay of Bangkok, also known as the Bight of Bangkok, is the northernmost part of the Gulf of Thailand, roughly extending from Hua Hin to the west and Sattahip to the east. Three of the major rivers of central Thailand empty into the bay: the Chao Phraya and its distributary Tha Chin, the Mae Klong and the Bang Pa Kong River. There are some interesting islands off the eastern shores of the bay, like Ko Sichang, Ko Lan and Ko Phai. 


Most popular dive sites

The best dive sites of the Bay of Bangkok are HTMS Chang Shipwreck, HTMS KudHardeep WreckBremen wreckKhram Wreck, North Rock (Koh Rin), Chumpon PinnacleKoh Man Wichai and with an amazing marine life. Khram Wreck is another dive site for experienced divers (maximum depth is 30m/98ft). The ship was sunk on 30 January, 2003 to create an artificial reef. Soft corals generously covering the wreck are spectacular. Divers have a chance to swim through the wreck and explore its compartments including instrument gauges, lockers, desks, toilets and showers, infirmary, mess room, kitchen, boilers and store rooms. It is a good site for macro photographers. Koh Man Winchai consists of several smaller dives. There is a wall encrusted with corals just after the entry where divers can explore numerous cracks, crevices and interesting rock formations. This is a boat dive which is great for novice divers.

When to go to Bay of Bangkok

While diving here is possible all year long, the climate stays hot and humid throughout the most of the year. The wet season usually lasts from May through October. April is the warmest month with the daytime temperature reaching up to 35C/95F and January is considered coolest with the average temperature of around 20C/68F. The temperatures at night are generally cooler than during daytime. The average sea temperature stays around 29C/84F all year round.


What to see

While diving in these waters divers can spot such marine species as angel fish, groupers, snappers, blue spotted stingrays, turtles, puffer fish, moray eels, butterfly fish, rays, wrasse, pelagic, crabs, bat fish, shrimp, schools of jacks, barracuda and tuna. Also there are many different types of soft and hard corals here. and that can be observed here.