Wakasu Seaside Park, Metropolitan seaside park in Koto, Japan

Wakasu Seaside Park is a waterfront park along Tokyo Bay with a golf course, cycling paths, fishing areas, and artificial rocky shores. The site spreads across spacious grounds divided into zones for different activities.

The park opened in 1990 under the Tokyo Metropolitan Government as part of an urban development project for new public recreation spaces. This project responded to the city's growing need for outdoor areas.

The artificial rocky shore at the park's tip is known for its many stray cats, and fishing from the free artificial breakwater draws crowds of anglers on holidays. The yacht training centre runs paid courses, mainly for young people, on holidays and during summer vacation.

Take the JR Keiyo, Yurakucho or Rinkai Line to Shin-Kiba Station, then the Toei bus on route Ki-11 for about 10 to 15 minutes. The park is always open, while the golf links, yacht training facility and other paid facilities operate only during the day. Parking is available on-site.

The park occupies Landfill No. 15, a waste site used from 1965 to 1974, where refuse and soil were buried in alternating layers in a "sandwich method" to limit impact on people and the environment. The artificial rocky shore at the tip of the park is home to many stray cats.