February to June: Best time for Butterfly watching in Sri LankaApril to May: Bird flocks of SinharajaMay to July: Sloth Bears in Yala June to September : Leopard watching in Yala National ParkJune to September: Sea bird migration off the West coast of Sri LankaJune to December: Climb Adam’s Peak during the off season and get a chance to see the wildlife.July to September: The ‘Gathering’ of Elephants in Minneriya. The biggest gathering of Elephants in the world.August to September: Bird flocks of Sinharaja October to April: Migrating Waders & Shore birds.October to April: Migrating Himalayan MigrantsNovember to April: Dolphin watching in the west coast of Sri Lanka.December to March: Whale Watching in the South coast.December to March: Sea turtle nesting in the south and east coast.All year round: Endemic Birds in Sinharaja & Horton Plains.All year round: See the Wild Flowers of Sri Lanka.