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Koh Sdach

A working fishing island in an archipelago off the Koh Kong coast, with reefs and almost no tourism.

Updated 21 October 2026

Typeisland
WhereKoh Kong
Nearest cityKoh Kong
Best seasonNovember to April
Time to allowTwo to four days
Getting thereBy boat from Poi Yopon on the mainland
EntryBoat fare

Koh Sdach, king's island, is the main settlement of a small archipelago off the southern Koh Kong coast, and unlike most Cambodian islands it is a working place first: a fishing village, boats moored in the channel, ice plants, and a school and market, with a couple of small resorts on the quieter side. The reefs around the group are in better condition than most on this coast and diving and snorkelling operate out of the island, with visibility that is decent in the dry months. Neighbouring islands including Koh Totang have very simple off-grid accommodation. Getting there means a boat from the mainland at Poi Yopon, and the archipelago sees a fraction of the traffic that Koh Rong does.

The landscape

  • The fishing village - boats, ice plants and a working island economy.
  • Reefs - snorkelling and diving in better condition than most of the coast.
  • Neighbouring islands - Koh Totang and others with off-grid huts.
  • The channel - the moorings and traffic between island and mainland.

When to go

November to April for calm seas and visibility; the monsoon from May to October brings rough water and most accommodation closes. Visibility for diving is best from December to March.

Before you go

This is a fishing village, not a resort island, and rubbish around the settlement is a problem. Accommodation is limited and basic, with generator power. Boats depend on weather. Reaching Poi Yopon on the mainland is itself a long drive.

Nearby

Koh Kong lies north; Sihanoukville is east along the coast.

Key facts

Area1.8 km² (0.7 sq mi)
Location10.9345° N, 103.0740° E · map

Source: Wikidata, item Q922064, read on 18 October 2026.

What to pack for Koh Sdach

Chosen from what this place is for. Tap a kit for the full checklist.

  • Travel rod + reel - A packable multi-piece rod fits in a case and covers most holiday fishing. Find on Amazon
  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Your own mask + snorkel - A well-fitting mask is the single biggest comfort upgrade underwater. Find on Amazon
  • Strong insect repellent - DEET or picaridin; the jungle is where bites and disease risk are highest. Find on Amazon

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All packing kits

Plan your trip

Where to start if Koh Sdach is going on the list.

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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