Shenandoah National Park

Just 75 miles from Washington, D.C., Shenandoah National Park is perhaps best known for the spectacular mountain vistas along twisty-turny Skyline Drive. Home to some 500 miles of wilderness trails, including many that are easily accessible from Skyline Drive itself, Shenandoah also hosts 101 miles of the Appalachian Trail. Only by getting out of your car and inside this 105-mile-long park can you truly experience everything it has to offer. Do it on a tight budget with the two-day Blue Ridge Package, which combines one-night of lodging at Skyland or Big Meadows, as well as dinner and breakfast for two at the Main Dining Room, starting at $198. Some blackout dates apply.

Denali National Park

The crowning glory of our 50th state, Denali National Park is celebrating Alaska's half century of statehood this year. With it comes a host of attractive new deals. The best of the bunch is the Sourdough Special, valid through September 20, which slashes rates by a whopping 50% compared to last year's prices. Other discounts include second-night stays for just $50 and a free second night for visitors turning 50 this year. (Notice a theme yet?) The discounted prices are available at McKinley Chalet Resort, McKinley Village Lodge, Grande Denali Lodge, and the Denali Bluffs Hotel.