Halloween weekend at Marquee Dome brings a daytime pool party twist to the spooky season, set inside the multilevel playground that is Marquee Dayclub at The Cosmopolitan. Expect the usual formula that makes this spot a Vegas staple: two pools glinting under the desert sun, cabanas with their own dipping pools, and a soundtrack from resident DJs that keeps the energy moving from early afternoon into evening. The costumes might lean more festive than functional given the pool setting, but the crowd-watching and people-dressed-up factor adds an extra layer of fun to an already lively scene.

Cocktails flow from the bars scattered throughout the venue, and the food menu is built to keep the party fueled without anyone needing to leave their lounge chair. Whether you're posted up in a grand cabana with a view or working the crowd near the DJ booth, the space is designed for lounging, dancing, and soaking in some Vegas sun with a Halloween edge. It's a solid pick if you want your holiday weekend to include a tan alongside the usual nighttime festivities.