Saiko is the quietest and least developed of the main Fuji Five Lakes open to general tourism, ringed by dense forest rather than resort hotels and bordered on its southeastern side by the northern edge of Aokigahara, the extensive forest grown over a lava field from Mount Fuji's 864 CE Jogan eruption. Visitors typically combine a stop at the lakeshore, popular with campers and bass anglers, with a visit to Saiko Iyashi-no-Sato Nenba, a reconstructed thatched-roof farming hamlet built on the site of a village destroyed by a 1966 typhoon-triggered flood, where about 20 traditional buildings now house craft workshops, small museums, and food stalls. Aokigahara itself is best experienced through one of its maintained walking trails, such as the roughly 30-minute loop near the Narusawa Ice Cave and Fugaku Wind Cave entrances, where the forest's volcanic-rock floor, exposed tree roots, and unusually dense, wind-still quiet are the main draw; the forest carries a widely known association with suicide in Japanese media, and visitors should stay strictly on marked trails, since the flat, magnetically confusing terrain and dense canopy make off-trail navigation genuinely difficult, and it is not a place for off-trail exploration. Saiko's calmer waters and forested shoreline offer some of the least crowded lake scenery in the region, particularly in the off-season.
Good to know
- Hours
- Lakeshore open 24 hours; Saiko Iyashi-no-Sato Nenba village 9:00am–5:00pm (until 4:30pm December–February)
- Best time
- Autumn for foliage on the forested shore, or summer for camping and fishing on the quiet western lake
Location
2926 Saiko, Fujikawaguchiko, Minamitsuru District, Yamanashi 401-0332
35.4864, 138.6167 View on map
Highlights
- Quietest and least developed of the main Fuji Five Lakes, popular with campers and anglers
- Saiko Iyashi-no-Sato Nenba reconstructed thatched-roof farming hamlet
- Maintained walking trails along the northern edge of Aokigahara forest
- Volcanic lava-field forest floor formed by Mount Fuji's 864 CE eruption
- Autumn foliage along the forested lakeshore with fewer crowds than Kawaguchiko
Tips for visiting
- Stay strictly on marked trails when walking into Aokigahara, as the flat terrain and dense canopy make off-trail navigation difficult
- Combine a stop at Saiko Iyashi-no-Sato Nenba with the Narusawa Ice Cave, a short drive or bus ride away
- Visit on a weekday for the quietest lakeshore experience among the Fuji Five Lakes
- Bring insect repellent in summer, as the forested shoreline draws more mosquitoes than the open lakes
- Check bus schedules carefully, as Saiko has less frequent service than Kawaguchiko or Yamanakako
When to visit
Autumn for foliage along the shore, or summer for the lake's camping and fishing season.
Accessibility
The Iyashi-no-Sato village grounds are mostly flat gravel paths, while forest trails into Aokigahara have exposed roots and uneven volcanic rock that are difficult for wheelchairs or strollers.
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Frequently asked questions
How long does a visit take?
A visit combining the lakeshore and the Iyashi-no-Sato hamlet takes about two to three hours.
Is it worth it for kids?
The reconstructed farming village and lakeshore are family-friendly, though a walk into Aokigahara itself is better suited to older children who can stay close on marked paths.
Is photography allowed?
Photography is allowed at the lakeshore, the reconstructed village, and along maintained forest trails.
Is it safe to walk in Aokigahara?
Maintained trails near the ice cave and wind cave entrances are safe and well-marked; visitors should not leave the marked paths, as the terrain is disorienting and search-and-rescue access is limited off-trail.