There are few roads penetrating the Glen Canyon National Recreation Area, so the best way to appreciate this rugged region is by boat. If you don't have your own boat, you can at least see a small part of the lake on a boat tour. A variety of tours depart from Wahweap Marina (tel. 888/896-3829 or 928/645-2433; www.lakepowell.com). Your best bet is either the 1 1/2-hour Antelope Canyon Cruise ($40 for adults, $26 for children) or the 2 1/2-hour Canyons Adventure Cruise ($63 for adults, $39 for children). To see more of the lake, opt for the full-day tour to Rainbow Bridge. Dinner cruises are also offered.
The Glen Canyon National Recreation Area covers an immense area, much of it only partially accessible by boat. If you'd like to see more of the area than is visible from car or boat, consider taking an air tour with Westwind Scenic Air Tours (tel. 800/245-8668 or 928/645-2494; www.westwindairservice.com), which offers several tours of northern Arizona and southern Utah, including flights over Rainbow Bridge and Monument Valley. Sample rates are $125 for a 30-minute flight over Rainbow Bridge (minimum two passengers) and $259 for a 90-minute flight over Monument Valley (minimum three passengers). Children 12 and under get a 10% discount.