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Our guide
Sayama Pond, in the city of Ōsakasayama, Osaka, is a man-made reservoir said to be the oldest in Japan: it was built around the 6th–7th centuries, and study of pottery found near it confirmed completion in the 7th century. It became a National Historic Site in 1946 and is listed as a World Heritage Irrigation Structure by the International Commission on Irrigation and Drainage.
Ōsakasayamashi Station on the Nankai Kōya Line is about 700 m away in a straight line.
Written by japan-spots.com (2026-09-22) from the sources credited on this page. Distances are straight lines between map positions.
Photos
Photos from Wikimedia Commons, each under its own licence — see credits
- 狭山池を中心とした街並み — HD crops · CC BY-SA 4.0 · source · resized
- 狭山池北堤2 — Kekero · CC BY-SA 4.0 · source · resized
- 狭山池北堤1 — Kekero · CC BY-SA 4.0 · source · resized
- 狭山池・取水塔 — Kekero · CC BY-SA 4.0 · source · resized
- さやりんBase — Kekero · CC BY-SA 4.0 · source · resized
- Sayamaike02 — takopon44 · CC BY-SA 3.0 · source · resized
- Sayamaike01 — Kansai explorer at Japanese Wikipedia · CC BY-SA 3.0 · source · resized
- Sayamaike (Osakasayama Osaka) Etang hdsr S5 03 — Hyppolyte de Saint-Rambert · CC BY 4.0 · source · resized
- Sayamaike (Osakasayama Osaka) Etang hdsr S5 02 — Hyppolyte de Saint-Rambert · CC BY 4.0 · source · resized
What this place is
Sayama pond (狭山池, Sayama-ike) is an artificial reservoir located in the city of Ōsakasayama, Osaka Prefecture in the Kansai region of Japan. Constructed around the 6th century, it is claimed to be the oldest in Japan, based on chronological survey of potteries near the lake which confirmed that the pond was completed in 7th century. The pond was designated a National Historic Site in 1946, and is listed as World Heritage Irrigation Structure by the International Commission of Irrigation and Drainage.
Background text from Wikipedia (CC BY-SA 4.0)
What to expect at this type of place: Lakes & falls
Nearby station
Nearby station: Ōsakasayamashi (Nankai Kōya Line), about 700 m from the spot in a straight line.
Worked out on 2026-09-14 from this place’s map position, using HeartRails Express station data and station names from Wikidata. The distance is a straight line, not a walking route, and says nothing about buses, transfers or timetables — plan the trip on Google Maps.
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