The park is built around the embankment of the Murayama Reservoir, which provides drinking water for Tokyo.
It is home to diverse species of wild birds, making it a popular spot for birdwatchers throughout the year.
The central park area was originally part of a reforestation project to protect the reservoir's watershed.
During spring, the park is a destination for 'hanami' (cherry blossom viewing) due to its elevated vantage points.
The park connects directly to the Yamaguchi Reservoir via a series of green trails.
Sayama Park is a hillside park surrounding the man-made Lake Tama, officially known as the Murayama Reservoir. The park features an expansive grassy central field flanked by approximately 20,000 trees, including extensive stands of cherry blossoms. Its terrain includes distinct topographical variations that offer panoramic views across the Tokyo metropolitan area. The park serves as part of the larger Sayama Prefectural Natural Park, acting as a protected green belt. It is designed to accommodate various ecosystems, including coppice forests and wetlands. Visitors can access a network of walking trails that skirt the perimeter of the reservoir.
The top of the reservoir embankment provides the best panoramic view of the lake and the distant Tokyo skyline.
Bring a picnic blanket as the large central lawn is the primary area for visitors to relax.
Wear comfortable walking shoes to navigate the incline between the lake-side paths and the lower fields.
Carry out all trash, as there are very few public waste bins available within the park grounds.
Do not attempt to swim or fish in the reservoir, as it is a protected water source.
Maintain quiet to respect local wildlife; stay on marked paths to protect the forest undergrowth.
