Horseshoe Lake is a tranquil, tucked-away gem hidden in the Caribou-Targhee National Forest near Ashton, in the Island Park country of eastern Idaho. Ringed by pines and dotted with lily pads, this peaceful little lake is a favorite for those who like their water quiet, clear, and free of the roar of motorboats — in fact, motorized boats aren't allowed, which keeps the whole place serene.

Getting there is easy: a well-maintained forest road leads to the lake, with plenty of pull-outs and parking once you arrive. The shoreline slopes in gradually, making it great for wading and easy for kids to splash around, while the middle deepens into water plenty deep enough for swimming, paddling, and a refreshing dip on a hot summer day. A youth camp maintains a floating dock out toward the center that's often open for anyone to use — a perfect launch pad for jumping into the cool water.

It's an ideal spot for paddling. Bring a canoe, kayak, or paddleboard and you can glide across the glassy surface, weave among the lily pads, and explore the quiet coves at your own pace. Anglers do well here too, casting for trout in the calm water, and the surrounding forest offers dispersed camping for those who want to linger overnight under the stars.

Summer is the sweet spot, when the water warms up and the lily pads are in bloom. Pack a picnic, your paddle, and your swimsuit, and remember to pack out everything you bring in to keep this little lake as pristine as you found it.

Peaceful, scenic, and refreshingly uncrowded, Horseshoe Lake is the kind of hidden Idaho water that makes the search worthwhile.