If you're in search of a wallet-friendly family retreat, this colourful mountain town in Eastern Tennessee is brimming with activity. Hike one of the many trails in the Great Smoky Mountains National Park (and try to find one of the massive waterfalls), bike along the Riverwalk Greenway, or take the kids tubing down Little Pigeon River. There are tons of cosy cabins that sleep four or more people on Airbnb in the $100 to $150 range.