If You Have Only 1 Day--In some ways, the Great Basin is actually two parks: the caverns and the mountains. Because of the frequency of afternoon thunderstorms in the summer, it is usually best to do outdoor activities early in the day. Therefore, those with only 1 day at the park should spend the morning on the Wheeler Peak Scenic Drive, possibly allowing time to hike at least part of one of the trails. Then, after a picnic lunch or sandwich from the cafe, take a cave tour (it's best to purchase tickets in advance), see the exhibits and programs in the visitor center, and take a walk along the Mountain View Nature Trail.