Take a fast and scenic nine-minute ride to the top of Rendezvous Mountain (10,450 feet) aboard the 100-passenger aerial tram (307/733-2292 or 888/333-7766, www.jacksonhole.com , daily 9 a.m.-6 p.m. late May-Sept., $25 adults, $20 seniors, $19 ages 13-17, $12 ages 6-12, free ages five and under) at Teton Village.
The tram ride gains more than 4,000 feet in elevation—this is a sensational way to reach the alpine. On top is a small snack shop in Corbet’s Cabin with made-to-order waffles and cocoa; bring a lunch if you need something more substantial. Several trails provide enjoyable hikes from the summit, but be sure to pack drinking water and a warm jacket. Dogs and bikes aren’t allowed on the tram.
Rendezvous Mountain is a favorite place for paragliders to launch. Tandem paragliding flights ($245) are available from Jackson Hole Paragliding (307/690-8726, www.jhparagliding.com ). No experience is needed for these half-hour flights, accessed via the tram.
Summer visitors can also ride the free Bridger gondola (from 4:30-9 p.m.) to the 9,095-foot level. It doesn’t reach the top of the mountain, but affords panoramic vistas over Jackson Hole  with access to hiking trails and meals at The Deck and Couloir Restaurant.
Take mountain bikes up the Teewinot chairlift (mid-June-early Sept., $10 adults, $8 ages 13-17, $6 ages 6-12, free for younger kids), with seven miles of bike trails on the lower sections of the mountain.
In addition to alpine rides, Teton Village is home to a number of other summer activities on the Village Commons ($12 per ticket or $50 for five tickets), including a bungee trampoline and a 25-foot outdoor climbing wall. The big central plaza features a delightful pop-jet fountain, playground, and fire pit, plus an amphitheater for concerts, Teton Raptor Center demonstrations, and storytelling on summer evenings at 5 p.m. Horseback rides, bike rentals, and disc golf are nearby, and child care is available at Kids Ranch (307/739-2654). Stop by the Activity Center for a map and details on all the Teton Village options.
At Snow King Mountain right on the edge of Jackson , the resort’s main chairlift (400 E. Snow King Ave., 307/733-5200 or 800/522-5464, www.snowking.com , daily 9 a.m.-8 p.m. late May-early Sept., $12 adults, $8 ages 7-13, free for kids under 7) takes folks for a 20-minute ride to the summit of the 7,751-foot mountain. On top you’ll find a short nature trail, panoramic views of the Tetons, and a myriad of longer hiking and biking trails. Rent a bike at the base of the mountain for a fun ride down.
Also at Snow King is the 2,500-foot-long Alpine Slide (307/733-7680 or 800/522-5464, www.snowkingmountain.com ), a summertime family favorite. For anyone older than six, the cost is $15 for one ride or $65 for five rides. For children ages 2-6 riding with an adult it’s an additional $3 per ride.
On the other side of the Tetons at Grand Targhee Ski Resort (in Alta, 307/353-2300 or 800/827-4433, www.grandtarghee.com ), you can ride the chairlift ($15 adults, $6 kids) to the 10,200-foot summit of Fred’s Mountain, where Grand Teton stands just seven miles away. The lift operates daily late June-mid-September. Mountain bikers can bring a bike (or rent one) to ride the trails high up the slopes; the cost is $20 for an unlimited number of chairlift rides.