Evening sun shining through trees in spring, Muir Woods National Monument, California, United States of America, North America

John Muir, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Mineret Falls, John Muir Trail, Inyo National Forest, Mammoth, California, United States of America, North America

Bridge 4, Redwood Canyon Walk, Muir Woods National Monument, California, United States of America, North America

Big leaf maple, Cathedral Grove, Muir Woods National Monument, California, United States of America, North America

Riverside apartments, architects Kemp Muir Wealleans, Cambridge, Cambridgeshire, England, United Kingdom, Europe

Vegetation and Coastal Redwoods (Sequoia sempervirens), Muir Woods National Park, California, USA, North America

Entrance sign for Muir Woods National Park, California, USA, North America

Yosemite Falls seen from the John Muir Trail, Yosemite National Park, California, USA

A man standing on the Mount Darwin summit along the 8.5 mile Evolution Traverse, John Muir Wilderness, Kings Canyon National Park, Bishop, California.

Man diving into La Salle Lake while hiking on a two-week trek of the Sierra High Route in the John Muir Wilderness in California. The 200-mile route roughly parallels the popular John Muir Trail through the Sierra Nevada Range of California from Kings Canyon National Park to Yosemite National Park.

A man hiking along the summit of Mount Mendel along the 8.5 mile Evolution Traverse, John Muir Wilderness, Kings Canyon National Park, Bishop, California.

Mount Darwin and the Evolution Traverse, John Muir Wilderness, Kings Canyon National Park, Bishop, California.

Mount Darwin and the Evolution Traverse, John Muir Wilderness, Kings Canyon National Park, Bishop, California.

Smoky Sierra Mountains from along the Evolution Traverse, John Muir Wilderness, Kings Canyon National Park, Bishop, California.

A man negotiating the ridgeline along the Evolution Traverse, John Muir Wilderness, Kings Canyon National Park, Bishop, California.

Crossing Big Pine Creek North Fork in John Muir Wilderness, Eastern Sierra Nevada, California.

Female sea kayaker paddling pristine waters of Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

Female sea kayaker paddling pristine waters of Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

Sea kayaks on remote beach calm waters of Muir Inlet in distance, Glacier Bay National Park and Preserve, Alaska

View through doorway of camping tent of woman walking on beach Muir Inlet in distance, Glacier Bay National Park, Alaska

Female sea kayaker paddling pristine waters of Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

A middle-aged woman paddles sea kayak in the pristine waters of Muir Inlet, Glacier Bay National Park and Preserve, Alaska

Female sea kayaker paddling pristine waters of Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

Female sea kayaker paddling pristine waters of Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

Female sea kayaker paddling pristine waters of Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

View through doorway of camping tent of woman walking on beach Muir Inlet in distance, Glacier Bay National Park, Alaska

Three sea kayaks pulled up into shoreline of secluded cove in Muir Inlet overcast sky in distance, Glacier Bay National Park, Alaska

Happy female woman sea kayaking pristine waters of Muir Inlet, Glacier Bay National Park and Preserve, Alaska

Redwoods in Muir Woods National Park California USA

Clover Muir Woods National Park California USA

Redwoods in Muir Woods National Park California USA

Redwoods in Muir Woods National Park California USA

Redwood Trees in Muir Woods California USA

Redwoods in Muir Woods National Park California USA

Redwoods Muir Woods California