Mueang Surat Thani, or colloquially Ban Don District, is the district of Surat Thani province in southern Thailand. The district is at the mouth of th…Mueang Surat Thani, or colloquially Ban Don District, is the district of Surat Thani province in southern Thailand. The district is at the mouth of the Tapi River, where it flows into Bandon Bay of the Gulf of Thailand. Neighboring districts are: Kanchanadit, Ban Na San, Ban Na Doem, and Phunphin district.