A lot of people from Utah would like to spend weekend in Las Vegas, it is really not my type of place for my day off, but if you got a chance to tag along, make it different.
Off road adventure, Toquerville Falls, many people may have seen a lot photos of this waterfall, but rarely heard of it, this is a place that close to a small town named Toquerville in between Cedar city and St. George, it requires around 6 miles off road drive, say it rugged is a little understated, medium or high profile 4x4 is recommended.
Valley of Fire is an amazing place. It's an easy drive in and out, only 1 hour from Las Vegas - definitely worth to stop. You can not only see the popular spots like Elephant Rock and Fire Wave, but also some cute wildlife. $10 per vehicle is required to enter ($15 for non-residents).