The 61 acre garden is centered around a large pond.
The grounds are surrounded by a salt water moat. These were once the gardens of a Shogun (Tokugawa Shogun had a 17th century villa here). Today, there's a Japanese tea house where the villa once stood.
Hamarikyu Gardens is well managed. Large fields of flowers are planted to bloom at different times of the year. It's also a popular place to see sakura in the spring.
The garden is well known to local photographers. The contrast of the natural beauty of the garden with Shidome's skyscrapers in the background is striking.
Hamarikyu Gardens is also a popular spot for wedding photos.