Sri Lanka provides the holiday maker with a wide range of recreational activities at its tourist resorts. Water sports, beach games, golf, tennis, squash, group events conducted by trained animators are among the many activities provided at the resorts.
Wind  surfing, water skiing, boating, swimming, diving and snorkelling are popular  events at the west and south coast resorts. Diving schools run by experienced  divers help the uninitiated. These resorts are popular with almost all holiday  makers coming to Sri Lanka. Australian surfers have a special affinity to  surfing at Hikkaduwa.
    Submerged wrecks in Sri Lanka's  coastal waters are an added attraction to the skilled divers. Negombo, Bentota,  Ambalangoda, Hikkaduwa, Galle, Unawatuna, Weligama along the west and south  coastal belt are ideal locations for water based activities.
Wind  surfing and water skiing are popular events at coastal hotels. So are boating  and boat trips. Inland boating facilities are available at the Bolgoda Lake in  Colombo. Boating along rivers has become a favourite pastime with the  tourists.
Tennis and squash are played at all major hotels in  Colombo and some resort hotels. Land based sporting activities like mountain  biking, trekking and hiking are there for those who like  adventure.
(http://www.atsrilanka.com/sports.htm)