There is an actual show in a showroom that you pay for called Le Reve. It was originally created by Franco Dragone, who was with Cirque du Soleil and produced Celene Dion's show. I've never seen it, but many people I know have seen it and some like it and some don't. It is similar to O at Bellagio in that there is lots of syncronised swimming and is performed mainly in a big water tank.