Discover Yosemite. This outfit operates daily tours to Yosemite Valley, Mariposa Grove, and Glacier Point in 14- and 29-passenger vehicles. The Highway 41 route stops in Bass Lake, Oakhurst, and Fish Camp, and the Highway 140 route departs from Mariposa, Midpines, and El Portal. Rates include lunch. Sunset tours to Sentinel Dome are additional summer options. 559/642–4400; 800/585–0565; www.discoveryosemite.com. From $124.
Mammoth All Weather Shuttle. This outfit operates summer tours from Mammoth Lakes to Yosemite; north to June Lake, Mono Lake, and Bodie Ghost Town; and around the lakes region. The company also transfers passengers from the Mammoth Yosemite Airport into town, drops off and picks up hikers at trailheads, and runs charters to Bishop, Los Angeles, Reno, and Las Vegas airports—useful when inclement weather causes flight cancellations at Mammoth's airport. Mammoth Lakes, California, 93546. 760/709–2927; www.mawshuttle.com. From $60.