Moki Dugway is very mild, mostly paved semi-offroad track. I rode it last May and you could easily drive the route in a Prius. While you're there, be sure to take in Gooseneck SP and Mexican Hat. If you're headed south, ride thru Monument Valley--a short and worthwhile out-n-back. More adventurous is Shafer Switchbacks in Canyonlands NP near the visitor center. You can ride down and back up, or if you feel adventurous, continue on the back route to Moab on 142 along the Colorado River to 279 to civilization. Some great overlooks along the way. More rugged and some gravel/sandy sections, but I did it on a Versys with 90:10 tires. You'll need to have a skid plate or be cautious of bottoming out on some of the rocky sections, and should prolly have at least some off-road experience to do the lower section to Moab. If the ferry is running--check because it wasn't running earlier this summer--it's a fun trip taking 276 from Halls Crossing to Bullfrog on the upper reaches of Lake Powell. Nice campground on the south side of the lake near the ferry departure point.