Unlike Sri Lanka's other beach resort towns, those who wish to enjoy a whale of a time in Mirissa must time their visit. As one of only two whale watching locations on the island, those who are planning a getaway to Mirissa must time their trip to coincide with the period when whales, dolphins and other marine creatures flock to the coast in large numbers. The official tourist season in Mirissa is from December to March and this period not only promises sunny skies and clear weather conditions but also whale sightings. This is also the busiest time of the year to visit Mirissa so budge travellers may want to tour the area during the offseason or the months of July and August when visitors are at an all-time low but the conditions are sunny. The only downside is that whale watching will not be possible during this period.