City Beach: Hua Hin from soi 67 to soi 23, approx. 4km.water is not clean, but beach very walkable and not busy. Accessible outside of city beach: Suan Son Beach to Khao Tao Beach 7 km of relatively clean, safe , lightly populated beach a few km. south of Hua Hin city. Water as clean as it gets in Thailand. Great potential: The beaches of Nahkon si Thammarat, Unfortunately, badly polluted with trash and illegal dumping of garbage in the grasslands. A lost love: Karon Beach, Phuket for its quality of sand. (Now, too crowded, poorly maintained and subject to polluted runoff) Krabi has some nice beach areas but they are not long enough for a good walk, and they are not always easily accessible.