OK, found it now with your help. Hope that someone with experience travelling in the south will be able to help you with the search for a hotel. A quick look at the GPS map shows the Thale Noi Resort (Phatthalung 4007 Rural Rd., Phanang Tung, Khuan Khanun, Phatthalung 93150 , 0-7468-5056) and the K.S. Guesthouse (Phatthalung 4007 Rural Rd., Phanang Tung, Khuan Khanun, Phatthalung 93150) both located a few hundred meters from the lake.