Being from Vegas, I love to go back and visit. The best time to visit Vegas is March, April, October, or November. The weather is comfortable and allows for walking around without unbearable heat during those times.
(Courtesy of NY Post)
Many people know the big things to do when visiting Vegas, like walking around Fremont Street or seeing the sites on the Strip (Bellagio Fountain Show anyone?); but there are some lesser known interesting activities to do when visiting. So after doing the obvious activities, like visiting the M&M factory, taking your picture at the Vegas Sign, and gambling, make sure you save time for the less obvious activities.
Wander around the Neon Graveyard or enjoy dinner at restaurants in the suburbs. There are some really great restaurants off the strip. Make sure to go out to Nelson, NV, a ghost town an hour outside of Vegas, to see where movies like
Fools Rushed In
filmed scenes at during production. Visit Mt. Charleston to dine in their lodge; or head to any of the state parks. Red Rock is a beautiful state park on the NW edge of Vegas. Another state park, that is an hour outside of Vegas, is Valley of Fire. Valley of Fire is equally as beautiful as Red Rock.
Make sure you enjoy the less tourist-y and natural side of Vegas while you are visiting--making sure to follow the Leave No Trace rule when visiting national parks. Vegas is so much more than just the Strip and casinos. If you enjoy any of the more local activities, let me know which is your favorite of my hometown.