[Hoshino Onsen Tombo-no-yu] A new experience wrapped in 1/f fluctuations and the scent of cypress: 'Tombo Foot Bath' featuring 13°C natural spring water returns this year
Hoshino Onsen Tombo-no-yu in Karuizawa, Nagano Prefecture, will hold a summer-exclusive event, 'Tombo Foot Bath,' from July 1 to September 6, 2026. During the event, foot baths featuring natural 13°C spring water from the nearby 'Wild Bird Forest' will be available. In its second year, the facility has been renovated with cypress wood, allowing up to 18 people to enjoy the space simultaneously. Additionally, the adjacent cafe will sell 'Forest Soda,' a non-alcoholic cocktail infused with the scent of trees.
📋 Article Processing Timeline
- 📰 Published: May 21, 2026 at 22:00
- 🔍 Collected: May 21, 2026 at 13:31
- 🤖 AI Analyzed: May 21, 2026 at 13:52 (21 min after Collected)
## Overview
Karuizawa's Hoshino Onsen Tombo-no-yu, a day-use hot spring facility, will host the 'Tombo Foot Bath' from July 1 to September 6, 2026. The foot bath, located next to the main facility, uses continuous 13°C spring water drawn from the national 'Wild Bird Forest.' This year, the foot bath tub has been refreshed with cypress wood for a more immersive natural experience. After cooling off, visitors can enjoy 'Forest Soda' at the adjacent Cafe Hungry Spot.
## Feature 1: Foot Bath Renovation
The foot bath located on the 'Larch Hill' next to Tombo-no-yu has been renovated. It is now approximately 6 meters long and can accommodate up to 18 people. Made with cypress wood, it offers a refreshing scent and calming water sounds, allowing guests to experience '1/f fluctuations' through their senses.
## Feature 2: Natural Spring Water
The water used is natural spring water from the Wild Bird Forest, filtered through geological layers. It remains at approximately 13°C year-round, which is an ideal temperature to stimulate skin cold sensors for a refreshing sensation without extreme cold.
## Feature 3: Forest Soda
The nearby Cafe Hungry Spot will sell 'Forest Soda,' a non-alcoholic cocktail made with distilled water extracted from five types of trees (larch, red pine, fir, aburachan, and cypress), offering a refreshing forest aroma with carbonation.
## Event Details
- Period: July 1 - September 6, 2026
- Time: 10:00 AM - 5:00 PM
- Price: Admission free; Forest Soda 750 JPY (incl. tax)
- Location: 'Larch Hill' in front of Hoshino Onsen Tombo-no-yu
Karuizawa's Hoshino Onsen Tombo-no-yu, a day-use hot spring facility, will host the 'Tombo Foot Bath' from July 1 to September 6, 2026. The foot bath, located next to the main facility, uses continuous 13°C spring water drawn from the national 'Wild Bird Forest.' This year, the foot bath tub has been refreshed with cypress wood for a more immersive natural experience. After cooling off, visitors can enjoy 'Forest Soda' at the adjacent Cafe Hungry Spot.
## Feature 1: Foot Bath Renovation
The foot bath located on the 'Larch Hill' next to Tombo-no-yu has been renovated. It is now approximately 6 meters long and can accommodate up to 18 people. Made with cypress wood, it offers a refreshing scent and calming water sounds, allowing guests to experience '1/f fluctuations' through their senses.
## Feature 2: Natural Spring Water
The water used is natural spring water from the Wild Bird Forest, filtered through geological layers. It remains at approximately 13°C year-round, which is an ideal temperature to stimulate skin cold sensors for a refreshing sensation without extreme cold.
## Feature 3: Forest Soda
The nearby Cafe Hungry Spot will sell 'Forest Soda,' a non-alcoholic cocktail made with distilled water extracted from five types of trees (larch, red pine, fir, aburachan, and cypress), offering a refreshing forest aroma with carbonation.
## Event Details
- Period: July 1 - September 6, 2026
- Time: 10:00 AM - 5:00 PM
- Price: Admission free; Forest Soda 750 JPY (incl. tax)
- Location: 'Larch Hill' in front of Hoshino Onsen Tombo-no-yu
FAQ
What is the exact date range for the 2026 Tombo Foot Bath event at Hoshino Onsen Tombo-no-yu?
The Tombo Foot Bath event at Hoshino Onsen Tombo-no-yu runs from July 1 to September 6, 2026.
What brand of wood was used in the 2025 renovation of the Tombo Foot Bath facility at Hoshino Onsen?
The Tombo Foot Bath facility at Hoshino Onsen was renovated using cypress wood in 2025.
How many people can simultaneously use the Tombo Foot Bath at Hoshino Onsen Tombo-no-yu after renovation?
After renovation, the Tombo Foot Bath at Hoshino Onsen Tombo-no-yu can accommodate up to 18 people at once.
What is the temperature of the natural spring water used in the Tombo Foot Bath at Hoshino Onsen?
The natural spring water used in the Tombo Foot Bath at Hoshino Onsen is 13°C.
What is the name of the tree-scented non-alcoholic drink sold at the cafe near Tombo Foot Bath in 2026?
The tree-scented non-alcoholic drink sold at the cafe near Tombo Foot Bath in 2026 is called Forest Soda.