The only National Park in an urban area, this smallest National Park is based around the natural hot springs that have been managed for public use. Bathhouse Row preserves 47 of these with many beneficial minerals.
Maybe we got lost somehow but this trail was not easy to follow and certainly wasn't a "loop" by my standards. we ran out of trail markers at a street next to a creek. We ended up walking/carrying our dogs next to a very busy local highway, then through a neighborhood, briefly through a shopping district, then up the side of the road that side of the West mountain where we had parked our car at the trail head. The map on my watch matched the shape of the trail map on this site. It was a very long walk, and we weren't expecting to be walking downtown in our dorky hiking gear with our dogs.