This 4K aerial footage explores the remote and verdant landscape of southwest Guyana. Covered in dense rainforest and low-lying cloud, the region is part of the Guiana Shield, one of the oldest ...
The USGS Hawaiian Volcano Observatory monitors volcanic activity across the Hawaiian Islands and American Samoa, helping to ...
Hard DISTANCE: 20.2km TIME: 7 Hours TOTAL ASCENT: 897m FITNESS: This is a fairly long day in the hills with a steep, rocky ...