Generally, when you get older, a few wrinkles start showing up. But that’s not the case in “O” Cirque du Soleil’s water-themed production at Bellagio. From the first engaging moments, where clowns frolic with an apparently unsuspecting audience member, through the many acrobatic and synchronized swimming endeavors in and out of the huge pool that serves as a stage, nary a bump or wrinkle is found. With 85 performers and 150 support personnel, that’s almost miraculous. On Sept. 28-29 and Oct. 12-13 at 3:30 p.m. in special takeovers to celebrate the 10,000 performance of “O”, Bellagio fountain viewers can catch two of the acts on the lake.

Bellagio, 7 & 9:30 p.m. Wed.-Sun., $98.50-$155 plus tax and fee. 702.693.8866