Unawatuna is a coastal town in Galle district of Sri Lanka. Unawatuna is a major tourist attraction in Sri Lanka and known for its beach and corals. It is a suburb of Galle, about 5 kilometres southeast to the city center and approximately 108 kilometres south of Colombo. Unawatuna is situated at an elevation of 5 metres above the sea level. Despite significant deveā¦Unawatuna is a coastal town in Galle district of Sri Lanka. Unawatuna is a major tourist attraction in Sri Lanka and known for its beach and corals. It is a suburb of Galle, about 5 kilometres southeast to the city center and approximately 108 kilometres south of Colombo. Unawatuna is situated at an elevation of 5 metres above the sea level. Despite significant development in the last decade it is still home to the endangered and endemic purple-faced langur, an unusually shy monkey species that can only be found in Sri Lanka's forests.