Omivian Spring

## Overview Omivian Spring (御巳安の湧水) is a public drinking spring located in the western outskirts of the greater Tokyo metropolitan area, situated at approximately 35.776°N, 139.143°E. This places the spring in the foothills of the Okutama or western Saitama region of Japan — an area well known for its clean mountain water sources fed by the forested highlands west of Tokyo. Springs in this part of the Kantō region typically emerge from layers of volcanic rock and sedimentary deposits, naturally filtered through the mountainous terrain, and have long been valued by local communities as sources of fresh, clean water. The name "Omivian" (御巳安) carries traditional Japanese significance, with the honorific prefix "御" (o/mi) suggesting a place of reverence or spiritual importance. Many natural springs in Japan have historically been associated with Shinto or Buddhist traditions, serving as sacred water sources for purification rituals and daily use alike. While specific historical records for this spring were not available at the time of writing, its designation as a public drinking spring suggests it has been used and maintained by the local community for some time. Visitors have historically used springs in this region as drinking water sources, though water quality can vary with season and weather conditions. ## Directions 1. The spring is located in the mountainous western portion of Saitama Prefecture or far western Tokyo, at GPS coordinates **35.7758897265898, 139.143016932908**. 2. From central Tokyo, head west on the Chūō Expressway or take the JR Chūō Line toward the Okutama/Chichibu area. 3. Use a GPS navigation device or smartphone map app set to the coordinates above for the most reliable route, as the final approach may involve narrow rural or mountain roads. 4. Look for signage indicating a public spring or 湧水 (wakimizu) as you approach the area. *Note: Specific turn-by-turn directions from a known landmark are not yet available. If you have visited Omivian Spring and can share detailed directions, your contribution would be greatly appreciated by future visitors.* ## What to Expect Springs in this region of Japan are typically well-maintained community water sources, often featuring a pipe or spout where water flows freely for collection. Many are set against lush, forested mountain backdrops and are accessible by car via rural roads, though some may require a short walk from the nearest parking area. The surrounding landscape is characteristic of the western Kantō highlands — dense deciduous and evergreen forests, steep valleys, and clean mountain streams. The area is especially scenic during autumn foliage season (late October to November) and the fresh green of early spring. As a designated public drinking spring, Omivian Spring has been reported to be used by locals for drinking water collection. However, as with any natural water source, conditions can change due to rainfall, seasonal variation, or upstream activity. Visitors planning to drink the water may wish to take appropriate precautions. The GPS coordinates place the spring in a relatively rural area, so visitors should be prepared for limited cell service and few nearby amenities. Bringing containers for water collection and wearing appropriate footwear for potentially uneven terrain is advisable.