I've been on a bit of a Japanese binge recently digging up old parks that arent on the RCDB. Japan has quite a rich coaster history but has faced neigh on catastrophic numbers of closures since the 70s (at least 100 parks).
This park popped onto my radar yesterday and had the rather excellent name Funabashi Health Center.
The park was part of the larger Tokyo metropolitan area in Chiba and featured both a water park and an amusement park separated by a fair distance.
To get people between them the park set up what is essentially a cross between a transport monorail and a shuttle coaster.
The stations at either end were on an incline and a small lift took the train up and out of the station kind of like the Japanese shuttle loops of old. Then after running back through the station the train would traverse several hills before reaching a station at the other end of the track where passengers would disembark and the whole process would take place in reverse.
Squint a bit and you can see the track running from the amusement park on the left to the water park top right.
The park open in 1955 and closed in 1977 but the transport coaster closed some time before that as a huge express way was built between the 2 parks.