Opening day of new game: "Boomerang" At 11h30 sharp on April 30th 2010, the slide BOOMERANG in Dam Sen water park have installed completely and the grand opening will open on June 1st 2010. It is a giant slide (12 meter in height, 25 meter in width) . This is an Indian -weapon -shaped slide. The ratf brings you gliding and shaking and then taking down to the receiving pool. This thrilling game will give you many great feelings. ...