Thale Noi is Thailand's largest bird sanctuary, but its not just for bird watchers. The huge Thale Noi lake at times resembles a swamp, with many marshy islands. Around 150 different species of birds stop here on their annual migrations between Siberia or China to the north and Sumatra or Australia to the south.
The peak period for bird watching is January to April, with as many 100,000 birds spending a few days here on their journey. The low season is around October to December.