Scuba Diving : Koh Samui and Koh Tao offer great diving opportunities and the area is a popular dive training center for the South East Asia region. Several reefs are located off the island's shores, with two of the most popular sites for advanced divers being Sail Rock and Angthong National Marine Park off the northern end of Samui. Plenty of fun for first-timers, accredited training can be undertaken with dive shops located in Chaweng, Lamai and Nathon for quite reasonable prices. Snorkeling : The bays of Samui contain many interesting coral reefs abounding with tropical fish and other creatures. Equipment can be rented from dive shops around the island or from your hotel. Koh Samui Regatta : The Koh Samui Regatta is now an annual event. The Regatta is timed to cater to the racing community after the China Sea Race and Manila's President's Cup Regatta. It also gives southern competitors the Easter break to make the voyage north and the Pattaya/Gulf of Thailand-based yachts the Songkran holiday to travel south. Sea Kayaking : Samui's shoreline and nearby islands harbour a wealth of marine, animal and plant life. For a close and leisurely look, there is no better option than to spend a few hours or a day in a sea kayak. Half-day, day and overnight guided trips are available through agencies in the Chaweng area. Kayaks can also be rented at the more popular beaches.