Pulau Ubin

This guide to Pulau Ubin in Singapore centers on a low-tide walk in December 2000, when a botanist named Joseph Lai stopped cold at a stretch of mud already marked for reclamation. You'll hear how six different shoreline habitats converge in this one spot, and how word of the discovery spread until more than a thousand people came out to see it before it could vanish. Climb the tower above the boardwalk and wait for the tide to fall.