On Open Street Maps’ contributor app, I’m walking around marking places as vacant.

When we arrived on Koh Lanta from the speed boat, I thought this must be a strange edge of town: duffel bag under my arm, dodging the calls from rickshaw drivers since my hotel is so close. I walked right to the dive shop, past a full row of restaurants on piers. Every one of the restaurants were fully staffed, someone at the door to call out, each…