Here's my video of Uminonakamichi Seaside Park, filmed during Theme Park Review's Japan trip in September 2007.
The park has a roller coaster, but forget that! Listen to this! They have slides that will burn your butt! The obstacle course is over Malaria Lake! You can drive your go-karts over unpaved roads!
For more information on future group roller coaster tours, please visit:
The link to the video is: http://www.youtube.com/watch?v=JphJwclHVM4
You can also see other videos from the trip at my YouTube page: http://www.youtube.com/barryh1972. The Japan videos have "2007" in the title.