For another, it requires an effort to get here here, and once you're here it takes an effort to leave. The crowd is young, but unlike Ko Phi Phi with its party beach of the same name, the vibe is mellow. Visitors tend to kick back communally and sip a few beers rather than pound buckets and dance the night away. But there's more to it than that. Let's put it this way: two popular bars are called Chill Out and Stoners. Pictures of Bob Marley abound. What, do we gotta spell it out for you? Only the three priciest places to stay offer 24-hour electricity and Tonsai has no shortage of dirt cheap bungalows.