Kamikitayama Onsen Yakushiyu is a day-trip hot spring facility located on the second floor of Forest Kamikita, an accommodation complex that reopened under its current branding in 2020, in the village of Kamikitayama, Yoshino District, Nara Prefecture. Situated across a bridge over the Kitayama River from the Yoshinoji Kamikitayama roadside station along National Route 169, it serves as a popular base for hikers heading to Mount Odaigahara and the Omine mountain range. The alkaline simple hot spring water, rich in sodium bicarbonate and piped from a source several hundred meters upstream, boasts a high pH of 8.6 and is renowned as a bijin-no-yu (beauty spring) for its colorless, slippery water that leaves the skin silky smooth.

The source temperature is approximately 32.4 degrees Celsius, classified as a low-temperature spring, with a generous flow rate exceeding 300 liters per minute. The water is officially classified as an alkaline simple hot spring (hypotonic, alkaline, low-temperature). Recognized therapeutic benefits include neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic digestive disorders, hemorrhoids, cold sensitivity, convalescence, fatigue recovery, and general health improvement.

The facility features two types of indoor baths, Ki-no-Yu (Wood Bath) fragrant with Japanese cypress and Ishi-no-Yu (Stone Bath) adorned with black granite, which alternate daily between male and female use. The rock-built open-air bath offers a serene experience surrounded by the murmur of the Kitayama River and a canopy of stars. Day-trip bathing is available from 13:00 to 21:00 (last entry 20:30) at 800 yen for adults and 400 yen for children.