Walk the length of Walking Street for street food, pad thai, and fruit shakes

Snorkel right off Sunrise Beach — turtles, colourful fish, and coral from shore

Rent snorkelling gear and explore on your own (150-200 THB/day)

Full-day snorkelling boat trip to surrounding islands (Koh Adang, Koh Rawi, Koh Jabang) -- ~$15-20 including lunch

Kayak around the island's coastline