Some of the national park pages are confusing. I'm wondering which of these would be covered by a single national parks pass (in a car of 5) and in which ones the 4 other travelers would have to pay their individual way in. I'm also wondering which of these has free camping:
Grand Canyon
Zion
Death Valley
Sequoia
Kings Canyon
Yosemite
Redwood
Crater Lake
Glacier
Yellowstone
Grand Teton
Wind Cave
Badlands
Thanks!