Shiokaze Park is a lovely spot to take a break. Enjoy a picnic, toss a Frisbee around or just lie on the cool grass and close your eyes for a while.
You'll soon find out why this Shinagawa recreation and green space is popular with travelers. If you're looking for other things to see here, Tokyo Tower, Tokyo Imperial Palace, and Meiji Jingu Shrine are in the area too. They won't take very long to get to from Shiokaze Park.