If your trip to Phu Wiang is all organized but your travel itinerary is looking a bit empty, let us give you a few hints and tips.If you're eager to return home with some unforgettable travel memories, have a go at caving. It's one of the most popular activities around town. When you're done, check out Ubolratana Dam and Phu Kao - Phu Phan Kham National Park.