# Autumn Leaves at Sayama Lake (Yamaguchi Reservoir Dam and Sayama Prefectural Nature Park)
_狭山湖(山口貯水池 ダム・県立狭山自然公園)の紅葉_

- **When:** Sat, Nov 21, 2026 – Thu, Dec 10, 2026 (JST)
- **Where:** Lake Sayama (Yamaguchi Reservoir Dam & Prefectural Sayama Nature Park), Tokorozawa — 25-2 Shorakuji, Tokorozawa-shi, Saitama
- **Map:** https://www.google.com/maps/search/?api=1&query=35.771168,139.399445
- **Price:** Free entry
- **Category:** Nature & Seasons
- **Official site:** https://www.city.tokorozawa.saitama.jp/iitokoro/enjoy/kanko/douhyou/sayamako.html
- **On Tokyo Events:** https://eventstokyo.com/en/events/autumn-leaves-at-sayama-lake-yamaguchi-reservoir-dam

![](https://ms-cache.walkerplus.com/walkertouch/wtd/event/07/l/393907.jpg)

Located in Saitama Prefecture, this scenic reservoir is recognized as one of Japan's top 100 dam lakes. On clear days, Mount Fuji can be seen and beautifully reflected on the water’s surface. Walking trails are available around the lake for pleasant strolls. From late November to early December each year, maple, oak, sawtooth oak, and pine trees along the lakeshore turn vibrant colors, offering spectacular autumn foliage.

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Source: Tokyo Events — https://eventstokyo.com/en/events/autumn-leaves-at-sayama-lake-yamaguchi-reservoir-dam