The beautiful Ranzan Autumn leaves “koyo” Festival 2025
Autumn leaves 紅葉 (koyo/ kōyō) Festival at the Ranzan valley / Gorge in 2025. Ranzan Valley¹ is a beautiful nature spot with several hiking routes in the Hiki area of Saitama Prefecture. It is particularly popular in Autumn when the leaves are in various shades of red, yellow and green.Read More →









