Just to the north of the museum is the very large and nice Shiokaze Park. This park was the volleyball venue for the 2020 Tokyo Olympics (which were delayed to 2021 because of COVID). There are also 2 large hotels just to the northeast, and northeast of those are the Fuji TV complex where you can take tours of the TV studios. All are within a few miles’ walk.
Just to the northeast of the park is the large Diver City complex. There is a giant Mobile Suit Gundam statue here. Diver City is a multi-use mall with lots to see and do. If you have extra time, walk on up and check it out.
The museum is closed on Mondays, except on Mondays falling on a national holiday.