Ask someone in Sri Lanka about the most popular beach in the South, and they will surely say Unawatuna. Unlike many beaches in Sri Lanka, the beach in Unawatuna is well-maintained and it's also clean. Since the beach is surrounded by restaurants and bars, the dining and entertainment options that the beach offers are great, especially for foreign travellers. Forget not- this area also has some great nightlife events. Unawatuna Beach is great for snorkelling and whale watching. However, if you go there during the peak season, you'll have to expect large crowds (peak season falls from December to January).