Koh Nang Kham

Ko Nang Kham is a large island — over 35 square kilometres — sitting inside Songkhla Lake, Thailand’s biggest natural lake, in Pak Phayun district of Phatthalung. It’s not an ocean beach destination: no coral, no sea, and the small resident population makes its living from rubber plantations, shrimp ponds, and lake fisheries rather than tourism. Entry is free and unticketed.

The reason it shows up in trip reports at all is a single site locals call the “Grand Canyon” (or Bodin, or Napa) — a former laterite quarry on the island’s Bankohnangtong side, where digging has exposed terraces of reddish-orange rock. After rain, a pool at the base fills with strikingly green water, and the contrast between the rust-coloured cliffs and the emerald pool is what draws the handful of photographers and day-trippers who make it out here. It’s a modest, unmanicured site — no ticket booth, no facilities, no safety rail — closer to an abandoned quarry with a striking accident of colour than a designed attraction.

Watch out: there’s essentially no tourist infrastructure on the island — no cafes, no signposted trails, patchy phone signal in places. Bring water and sun protection, and don’t expect English signage or staff on-site.

Beyond the canyon, the appeal is the pace: quiet lake-shore roads good for cycling, rubber trees tapped in the early morning the traditional way, and small jetties where fishermen work the lake for freshwater catches. An existing bridge already connects the island to Ko Mak sub-district and onward to Pak Phayun on the mainland, so a boat crossing isn’t strictly necessary — a car or motorbike works for most of the year. A larger bridge project to link the island directly to Songkhla’s Khuan Niang district has been surveyed but isn’t expected to open until around 2030; don’t plan a visit around it existing yet.

Insider Tip: Pair the canyon with a visit to Thale Noi, the Ramsar-listed waterbird reserve on the same lake system roughly half an hour away — it’s a far bigger, better-set-up attraction and makes more sense as the main stop, with Ko Nang Kham as an offbeat add-on rather than a destination in its own right.

This is a genuinely offbeat stop best suited to travellers already exploring Phatthalung’s lake country rather than a standalone reason to visit the province.