From June 18th | "Women-Only Sauna" Opens in a Forest at an Altitude of 250m. "Only You," a Hot Spring Day Trip Facility in Minamiashigara, Kanagawa, Opens Barrel Sauna in Women's Outdoor Bath Area

On June 18, 2026 (Thursday), "Modern Toji Only You" (operated by Only You Co., Ltd.), a hot spring day trip facility nestled in a forest at an altitude of approximately 250 meters in Minamiashigara City, Kanagawa Prefecture, will open an authentic barrel-shaped sauna, the "Barrel Sauna," in its women-only outdoor bath area. Guests can enjoy aromatherapy self-löyly (a bathing method where water is poured over hot sauna stones to create steam) while listening to the chirping of birds and the murmuring of a river. After the sauna, they can experience "outdoor bathing akin to forest bathing" in the facility's proud lukewarm water at 38°C – a new retreat space for women is born.

■ Background | Why a "Forest Sauna" in the Women's Outdoor Bath Area Now?

With the concept of "Modern Toji Gentle on the Body," Only You has provided a relaxing hot spring experience for extended stays, featuring alkaline hot springs with a pH of 9.5 (beauty skin hot springs), lukewarm water at 38°C, and a location surrounded by deciduous forests. It has also been selected as a model facility for Kanagawa Prefecture's "Me-byo Improvement (Western Kanagawa Region Revitalization)".

Responding to the rising popularity of saunas in recent years, the facility first introduced a sauna in the men's outdoor bath area in December 2024. In response to requests such as "We want to deliver the ultimate sauna experience that can only be offered here, surrounded by nature, to our female customers as well," the decision was made to introduce the Barrel Sauna to the women's outdoor bath area.

■ Features

【Feature 1】A Prime Seat in the Forest. "Barrel Sauna" Overlooking Dappled Sunlight

The rounded barrel shape allows heat to circulate efficiently within the room. It is a sauna room integrated with nature, where guests can relax in the warmth of the wood while gazing at the new green foliage and dappled sunlight of Minamiashigara spreading outside the window. (Capacity: 6-8 people / Room temperature: 90°C)

【Feature 2】Customize with Aroma. "Aromatherapy Self-Löyly"

Adopting self-löyly, where aromatherapy water is poured over sauna stones to create steam. The gradually spreading heat and the scent of trees will soothe daily stress and fatigue.

【Feature 3】Only You's Unique "Lukewarm Water x Forest Bathing Relaxation"

After warming up to the core in the sauna, move to the outdoor bath, intentionally set at a slightly lukewarm temperature (38°C). You can enjoy Only You's signature luxurious "outdoor bathing (forest bathing)" while feeling the natural breeze while immersed in the not-too-hot water.

■ Overview

Facility Name

Modern Toji Only You

New Facility Content

Women's Outdoor Bath Area "Barrel Sauna"

Opening Date

June 18, 2026 (Thursday)

Location

1520-1 Hiromachi, Minamiashigara City, Kanagawa Prefecture, 250-0121

Business Hours

10:00 AM - 8:00 PM

(Closed for maintenance for 2 days each in June and December)

Price

2,420 yen (Weekends/Holidays/Specific periods +110 yen)

Access

Approximately 20 minutes by car from Tomei Expressway "Oi-Matsuda IC" / Shuttle service available from Izu Hakone Railway Daiyuzan Line "Daiyuzan Station" / Free parking for 80 cars

Official Website

https://www.ashigara-only-you.com/

■ Future Prospects / Comments from Staff

【Hiroaki Hashima: Manager】 "We want more female customers to experience the charms of our lukewarm water and forest bathing through our sauna. We offer time to reset the mind and body in nature, away from the hustle and bustle of daily life."

■ Company Profile

Only You Co., Ltd. [Modern Toji Only You]

Address: 1520-1 Hiromachi, Minamiashigara City, Kanagawa Prefecture

URL: https://www.ashigara-only-you.com/