2. Figure 7.1. Summer time tobogganing track on Straža Hill in Bled, a municipality in northwestern Slovenia (Photo courtesy of Donald L. Grebner).

3. Figure 7.2. Camping by the River Torridon in northwestern Scotland, United Kingdom (Photo courtesy of Peter Bond, through Wikimedia Commons).

4. Figure 7.3. Two people hiking in Gorbeia Park between the provinces of Álava and Vizcaya, Spain (Photo courtesy of Gorkaazk, through Wikimedia Commons).

5. Figure 7.4. Fishing in a small pond in northeastern Scotland, United Kingdom (Photo courtesy of Donald Bain, through Wikimedia Commons).

6. Figure 7.5. A hunter surveying the landscape near Stavoli, Italy (Photo courtesy of Joadl, through Wikimedia Commons).

7. Figure 7.6. Several people bird watching at Minsmere near Eastbridge, Suffolk County, United Kingdom (Photo courtesy of Keith Evans, through Wikimedia Commons).

8. Figure 7.7. Rock climbing on the Rivelin Edge near Sheffield in South Yorkshire, England, United Kingdom (Photo courtesy of Dave Croker, through Wikimedia Commons).

9. Figure 7.8. All terrain vehicle (quad) race on the Tilleda Pond, part of the frozen Embarrass River near Tilleda, Wisconsin, United States (Photo courtesy of Royalbroil, through Wikimedia Commons).

10. Figure 7.9. Whitewater rafting on the Rangitata River, south of Christchurch, South Island, New Zealand (Photo courtesy of Donald L. Grebner).

11. Figure Zip lining in a tropical forest near Laguna de Arenal and Volcán Arenal, northwestern Costa Rica (Photo courtesy of Stacey Herrin).

12. Figure Horseback riding in the Shoshone National Forest in Wyoming, United States (Photo courtesy of Mongo, through Wikimedia Commons).

13. Figure Cross country skiing in Kananaskis, Alberta, Canada (Photo courtesy of Glen Larson, through Wikimedia Commons).

14. Figure Barbecue picnic at the Forest of Dean in Gloucestershire County, England, United Kingdom (Photo courtesy of Eric Soons, through Wikimedia Commons).

15. Figure Canoeing on calm waters in Rhode Island, United States (Photo courtesy of Lynn Sheldon).

16. Figure Mountain biking in Rowney Warren Woods near Shefford, Bedfordshire County, England, United Kingdom (Photo courtesy of James Bentall, through Wikimedia Commons).

17. Figure A man picking mushrooms in the Jerusalem Forest, situated in the Judean Mountains of Israel (Photo courtesy of Lior Basson, through Wikimedia Commons).

18. Figure Lower Yellowstone Falls in the Yellowstone National Park, Wyoming, United States (Photo courtesy of Stephen C. Grado).

19. Figure Old Faithful geyser in Yellowstone National Park, Wyoming, United States (Photo courtesy of Stephen C. Grado).

20. Figure Half Dome at Yosemite National Park, California, United States (Photo courtesy of Stephen C. Grado).

21. Figure The entrance to Devils Tower National Monument, northeastern Wyoming, United States (Photo courtesy of Tibor Pechan).

22. Figure The entrance to Denali National Park, Alaska, United States (Photo courtesy of Stephen C. Grado).

24. Figure The entrance to Giant Sequoia National Monument, California, United States (Photo courtesy of Stephen C. Grado).

25. Figure Mountains of the Grand Teton National Park, Wyoming, United States (Photo courtesy of Stephen C. Grado).

26. Figure The entrance to a state park in California, United States (Photo courtesy of Stephen C. Grado).

27. Figure A sign announcing the entrance to the Catskill Park near Napanoch, New York, United States (Photo courtesy of Daniel Case, through Wikimedia Commons).

28. Figure Kaaterskill Clove in Catskill Park, New York, United States (Photo courtesy of Daniel Case, through Wikimedia Commons).

29. Figure Snow-covered Gray Peak, Adirondack Park, New York, United States (Photo courtesy of Ari Epstein, through Wikimedia Commons).

30. Figure A view of Central Park, New York City, New York, United States (Photo courtesy of Piotr Kruczek, through Wikimedia Commons).

31. Figure A scenic trail in Forest Park, Portland, Oregon, United States (Photo courtesy of EncMstr, through Wikimedia Commons).

32. Figure A resting place that commemorates mountain climbers at a hilltop in the Primorska region of Slovenia (Photo courtesy of Donald L. Grebner).

34. Figure Forest trail leading to the Blue Pools in Mount Aspiring National Park, South Island, New Zealand (Photo courtesy of Donald L. Grebner).