October 9, 1989 (, Jisi September tenth day), China's first one-submersible yacht into the water.

1989, entertainment, science in one of the first one-submersible yacht, ship repair yard in Hanshou County succeeded in the trial, which was recently launched trials.
this submersible yacht, one for water play equipment Park Reservoir, Neihu. It can be sailing on the water, also dive sailing.
ship can take 4 people, maximum speed of five kilometers per hour. (L $ j��.c��)