Sezon 4
Bölümler
1 Escalante River Slot Canyons 17 Eki 2011 2 Fan Hike: John Muir Trail 31 Eki 2011 3 Yosemite Valley: Guest Hike 14 Kas 2011 4 Everglades National Park 19 Ara 2011 5 Exploring Dry Tortugas National Park 12 Şub 2012 6 Shoshone National Forest & Brooks Lake Lodge 18 Mar 2012 7 Exploring Monterey Bay, California 26 Mar 2012 8 Exploring Arches National Park 8 Nis 2012 9 Jackson Hole, Wyoming: Grand Teton National Park 15 Nis 2012 10 Badlands National Park 6 May 2012 11 Canyonlands National Park 13 May 2012 12 Wind Cave National Park 27 May 2012 13 Sailing the British Virgin Islands 17 Haz 2012 14 Virgin Islands National Park 15 Tem 2012 15 Motion: Behind the Scenes 13 Eyl 2012 16 Misty Fjords National Monument 27 Eyl 2012