Viang Vieng is a small village on a river amongst Karst limestone hills. Very popular with travellers just for hanging out in. We walked a bit in the area, mostly along the river and to nearby caves, of whihc there were many. Best was a very bumpy ride on a trailer pulled by a motorised plough out to see some caves nearby, where Heather also had a swim. The caves were huge, with this buddha in the middle, very atmospheric. We didn't have a guide to take us through the caverns, so just went around the big ones. The limestone was very slippy and I nearly broke my leg.