6199: Hydro Crystalization Station

Year Released: 1998
Bricklink
Instructions

*Alternate Build Connection: Aquadome

The box reads, “These underwater heroes search the sea for the powerful Hydrolator crystal. But watch out – Enemy sting rays are lurking in the depths! With building sets from the LEGO® SYSTEM™ Hydronauts Collection, only you, the LEGO MANIAC® can determine the outcome of this underwater adventure…”