Grand Canyon, U.S.A.

grand canyon hiker

Grand Canyon, U.S.A.

Grand Canyon, U.S.A.

When to Go: Fall

Why: September and October are still warm in Arizona, but most of the summer crowds -- usually families on vacation -- have returned home. While this region rarely discounts, you won't have as tough a time getting a lodge or rafting trip reservation, and many consider the hiking conditions ideal. Keep in mind that some facilities close in mid-October and that snow falls on the North Rim as early as mid-November.

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