S04 Episode 1
New River Gorge National River
30 mins · Sat, 7 Oct 2017
S04 Episode 2
NYC: National Parks of New York Harbor
30 mins · Sat, 14 Oct 2017
S04 Episode 3
Biscayne National Park
30 mins · Sat, 21 Oct 2017
S04 Episode 4
Glacier: Back in Big Sky Country
30 mins · Sat, 28 Oct 2017
S04 Episode 5
Jasper National Park
30 mins · Sat, 4 Nov 2017
S04 Episode 6
Churchill, Canada
30 mins · Sat, 11 Nov 2017
S04 Episode 7
Coconino National Forest
30 mins · Sat, 18 Nov 2017
S04 Episode 8
Katmai: Return To The Valley of 10,000 Smokes
30 mins · Sat, 25 Nov 2017
S04 Episode 9
Bears Ears National Monument
30 mins · Sat, 20 Jan 2018
S04 Episode 10
San Juan National Forest
30 mins · Sat, 27 Jan 2018
S04 Episode 11
White Mountain National Forest
30 mins · Sat, 3 Feb 2018
S04 Episode 12
Devils Tower National Monument
30 mins · Sat, 10 Feb 2018
S04 Episode 13
Santa Fe National Forest
30 mins · Sat, 17 Feb 2018
S04 Episode 14
Florida Parks: Hurricane Recovery
30 mins · Sat, 24 Feb 2018
S04 Episode 15
Best of Caves
30 mins · Sat, 3 Mar 2018
S04 Episode 16
Cayman Islands
30 mins · Sat, 10 Mar 2018
S04 Episode 17
Jean Lafitte National Historical Park
30 mins · Sat, 17 Mar 2018
S04 Episode 18
Best of Rivers and Waterfalls
30 mins · Sat, 7 Apr 2018
S04 Episode 19
Best of Conservation
30 mins · Sat, 14 Apr 2018
S04 Episode 20
Best of the Rockies
30 mins · Sat, 21 Apr 2018
S04 Episode 21
Northern California
30 mins · Sat, 28 Apr 2018
S04 Episode 22
Grand Canyon National Park: Rim to Rim
30 mins · Sat, 5 May 2018
S04 Episode 23
Denali: Dog Sledding
30 mins · Sat, 12 May 2018
S04 Episode 24
Santa Catalina Island
30 mins · Sat, 19 May 2018
S04 Episode 25
Superior National Forest
30 mins · Sat, 26 May 2018
S04 Episode 26
Nevada: The Loneliest Road in America
30 mins · Sat, 2 Jun 2018