Blue Hole Falls is a 0.3 mile moderately trafficked loop trail located a few miles from Bristol near Elizabethton, Tennessee that features a waterfall and is good for all skill levels. The trail is primarily used for hiking, walking, and nature trips. Dogs are also able to use this trail but must be kept on leash.ssible by a bridge over the creek just off the trail. This area includes 2 picnic tables, grills and a trash receptacle. This area is located directly beside the creek.