Vesak - festival of lights celebrated island wide

On Vesak full-moon Poya day in May, Buddhists all over the world venerate the life of Lord Buddha – his birth, enlightenment and passing away. Homes, villages and cities in Sri Lanka are lit up in serene splendor with oil lamps and intricate hand made lanterns made of bamboo and tissue paper. 
source- http://www.reddottours.com