Fifth Water Hot Springs (Diamond Fork)
Spanish Fork · Utah County
Read this first: Utah DEQ monitors Fifth Water for harmful bacteria, and its July 15, 2026 update reports severe rashes among soakers. Keep your head out of the water, stay clear of the algae, then dry off and shower afterwards. With that understood, these are natural streamside pools in Diamond Fork Canyon, about 2.5 miles up the trail from Three Forks Trailhead. You'll need a $10 three-day pass per vehicle or an interagency pass. The lot is very small and they ticket and tow, so arrive early or start from the Fifth Water Trailhead on Rays Valley Road. Carry water; the trailhead has none.
From USFS Spanish Fork Ranger District, last checked 19 September 2026.