18 - 22 March 2013
Tham Pha Phueng 'deepened' to 404m depth and length extended to 4.1km with discovery of 500m series of passages within 75m of entrance.
Cave NA0122 surveyed 340m, exploration not complete.
Guide showed us another 5 caves and shafts that need to be investigated.
Away from Ban Mani Phruk surveyed Tham Sua Dao near Ban Nam Pua Phatthana to 126m
Glenn Washburn, Tomasz Wyderka, Phil Collett, Martin Ellis
