We stumbled upon Rhumbar when I came to Vegas earlier this year and it has since become one of my go-to spots to grab a drink and hang out.
Located right outside The Mirage, Rhumbar offers tropical drinks and hookah all in a casual setting. There's plenty of seating, so it's perfect for big groups, and tons of tv's, so you can catch a game. Later in the day, they also have a DJ.
Service here has always been quick, efficient, and the bartenders know how to make a drink. Drinks are reasonably priced, especially for being on the Strip. I've had their caipirinha and mojito and both are tasty. We came in on my birthday and one of the managers gave us shots on the house. They also have hookah after 4 p.m.; lots of flavors but a little on the pricier side.
If you're looking for a spot to relax and grab a drink, Rhumbar is the perfect place to take a break from the Strip.