No, you cannot camp anywhere in Zion National Park. Camping is only allowed in designated campgrounds within the park. There are three campgrounds in Zion National Park: South Campground, Watchman Campground, and Lava Point Campground. South and Watchman Campgrounds are located near the park's main entrance, while Lava Point Campground is about a 1-hour drive from the main entrance and offers more primitive camping. Reservations are required for Watchman Campground, while South and Lava Point Campgrounds operate on a first-come, first-served basis. For more information on camping in Zion National Park, you can visit the official park website.