108 miles from Patong Bay
This anchorage, lying between the two islands on the northeastern side, provides a good overnight haven in the northeast season.
Anchor in 18 metres well out in the bay, avoiding coral on a sandy bottom. There are a few large moorings and a number of yacht moorings available to visitors at a small charge.
In the north of the bay, the park headquarters on Koh Surin Nua boasts a restaurant, showers and toilets and some bungalows. South of the bay, on Koh Surin Tai, a sandy spit with a spring at its northern end is accessible at high tide. The channel between the two islands is not navigable.
There is a daily ferry from Thap Lamu. The bay immediately north of the channel also has moorings but is not as convenient for the national park HQ.