Honzawa Dam (本沢ダム)
Flow of the course
About this spot
A dam reservoir built high on a mountain, surrounded by a quiet, green landscape. The walking trail around the lake is open 9:00-16:30 (per Sagamihara City's official information), so enjoy the lakeside walk and the view while it's still light. Far from city lights, the sky feels wide open here, and on clear days the changing colors of the sky at dusk are beautiful. Parking is available.
Season & hours
Name: 城山湖(本沢ダム)
Date & time: 城山湖散策路の開放時間は9:00–16:30(相模原市公式)
Venue: 相模原市緑区・城山湖(本沢ダム)
Tips
The walking trail closes at 16:30, so leave yourself plenty of time for the lakeside walk. Before stargazing after sunset, please check Sagamihara City's official information for accessible areas and opening status. Evenings in the mountains get cold, so don't forget a jacket.
Best time to visit
Late afternoon to evening, within the open hours, when the air is clearest
How was this spot?
Access & map
〒252-0111 Kawajiri, Midori Ward, Sagamihara City, Kanagawa Prefecture, 5964-Ha-3
Model course featuring this spot
2026 Full-Day Course: Starry Skies at Shiroyama Lake (城山湖, Honzawa Dam)
Kanagawa
Explore features & model courses
Like this spot? Sign up free to save it to your own booklet as a plan or a want-to-go.