Need a little sand in your diet? Sun Buggy Fun Rentals (the company also operates in Pismo Beach, Calif.) rents one-, two- and four-seat buggies and all-terrain vehicles, taking excursions to nearby Nellis Dunes, the Valley of Fire and the Amargosa dunes. The most adventurous will sign up for the Mini Baja trip, a bone-shaking 90-minute tour of Nellis' rocky and rutted terrain. Full-face helmets are provided. The buggies are comfortable, safe and easy to drive, but a couple of hours in one will leave you feeling fully tenderized.