Labor Day weekend at Marquee Dayclub transforms the already vibrant pool scene into something extra. The 22,000 square-foot venue comes alive with its signature blend of electronic music, two pools filled with revelers, and that perfect late-summer energy when everyone's trying to squeeze the last drops out of the season. The resident DJs know exactly how to work the holiday crowd, keeping the music flowing from late morning into the afternoon.

The setup at The Cosmopolitan gives you options – you can claim a spot in one of those glass-edged cabanas with dipping pools if you're going the VIP route, or join the general admission crowd around the main pools where the real party energy tends to concentrate. The bars stay busy serving up specialty cocktails, and there's food service to keep you going through the day. It's 21 and over, so the vibe skews toward an adult party atmosphere where people are there to dance, drink, and celebrate the unofficial end of summer in proper Vegas fashion.