Tarutao National Marine Park was declared in 1974 as Thailand's first marine protected area, and Koh Lipe was deliberately left outside its boundary. The Urak Lawoi community had already settled the island, so the cartographers drew around them. The result is an enclave: roughly three kilometres of sand under private title, encircled by protected water. That is the quiet logic behind Koh Lipe dive package tours, which carry divers out of a village and into a national park within twenty minutes. The Urak Lawoi reached the Butang archipelago in the early twentieth century, free divers and net fishermen who read reefs by touch and current. Their name for the island is usually translated as paper-thin, a note on its flatness rather than its looks. For most of the century the archipelago was remote enough to hold a penal colony on neighbouring Tarutao, whose prison closed in 1948. Electricity reached Koh Lipe late. Walking Street, now the island's commercial spine, was a footpath within living memory. Geology explains why Ko Lipe diving trips look nothing like the karst excursions of Krabi or Phang Nga. The Butang islands are granite, not limestone, so the underwater topography is boulder architecture: tumbled blocks, swim-throughs, vertical seams packed with soft coral. Stonehenge, a field of granite monoliths lying between roughly 18 and 28 metres, is the site most operators build a dive plan around. Jabang is shallower, a pinnacle sheathed in purple and yellow soft coral. Eight Mile Rock sits further offshore, a submerged seamount that draws pelagic traffic and the occasional whale shark. Visibility across the group commonly runs between 15 and 30 metres. What matters now is scale. Koh Lipe supports only a handful of permanent dive centres, and the reefs they work sit inside a park that still restricts anchoring and construction. Divers share the water with hawksbill turtles, bumphead parrotfish and reef sharks rather than with traffic. Position helps too: Langkawi lies about 60 kilometres south, Pak Bara roughly 90 minutes north by speedboat, so the Butang reefs remain awkward to reach and lightly dived. Koh Lipe dive package tickets are, in practical terms, access to one of the Andaman's least crowded granite reef systems.