Koh Samui: clearing in by boat
Port of entry of Thailand (island: Koh Samui).
Check with the authorities before you leave (last checked on 28 October 2026).
Services
Clearing out possible here
Good to know
Cited as a Gulf-side clearance point; details not confirmed.
Offices to visit
In the usual order of the formalities. Addresses can change: ask the harbour office when you arrive.
Immigration de Koh Samui (Maenam)
Immigration
Soi 1, Maenam, Koh Samui
New offices on the north coast.
Douane et Harbour Master, jetée d'Ao Nathon
CustomsHarbour office
Près de la jetée, Nathon, Koh Samui
The harbour master reportedly asks a 500 THB 'personal fee': negotiate.
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This information is gathered from public sources and sailors’ experience. It does not replace the country’s authorities, whose word is final: check before you leave.