How can you tell when autumn has arrived in Hainan?

In sunny Hainan, fall doesn't look much different from summer, with most trees still covered in bright green leaves. It's rare to see leaves changing colors or falling from the branches. If you slow down and look carefully though, you can enjoy many subtle signs of the changing seasons even here on this tropical island. Autumn in Hainan isn't flashy or bold, it's an elegant, quiet nod to the passage of time. It's a celebration of the beauty of nature and the many forms that life can take.