Butterfly watching is a popular activity among nature enthusiasts in Sri Lanka. The country is home to over 245 species of butterflies, many of which are endemic to the island. Sri Lanka's diverse landscape, including rainforests, mountain ranges, and wetlands, provides an ideal habitat for these beautiful insects. The best time for butterfly watching in Sri Lanka is from December to April, which is the dry season. During this time, the weather is mild, and butterflies are more active. However, butterfly watching can be done throughout the year in Sri Lanka. Butterfly watching in Sri Lanka can be done in various locations. Some of the popular spots include the Sinharaja Forest Reserve, which is a UNESCO World Heritage Site and a biodiversity hotspot. This is an excellent place to see a wide range of butterfly species, including the Sri Lankan Jungle Glory, the Blue Mormon, and the Common Tree Nymph. Another popular location for butterfly watching is the Horton Plains National Park, which is located in the central highlands of Sri Lanka. The park is known for its cloud forests, grasslands, and high-altitude wetlands, which are home to several species of butterflies, including the Sri Lankan Montane Tree Brown and the Common Jay. Other popular locations for butterfly watching in Sri Lanka include the Kanneliya Forest Reserve, the Knuckles Mountain Range, and the Udawatta Kele Sanctuary. These areas are home to a wide range of butterfly species, including the Sri Lankan Tree Nymph, the Crimson Rose, and the Tawny Rajah. Butterfly watching tours in Sri Lanka are available for those who want to experience this activity with a guide. These tours typically include transportation, a knowledgeable guide, and the necessary equipment. Visitors can also opt for self-guided tours, but it is essential to have knowledge of the local butterfly species and their habitats.