
Sea Lion Caves is a connected system of
sea cave
A sea cave, is also known as a littoral cave, a type of cave formed primarily by the wave action of the sea. The primary process involved is erosion. Sea caves are found throughout the world, actively forming along present coastlines and as re ...
s and
cave
Caves or caverns are natural voids under the Earth's Planetary surface, surface. Caves often form by the weathering of rock and often extend deep underground. Exogene caves are smaller openings that extend a relatively short distance undergrou ...
rns open to the Pacific Ocean in the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...
of
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
. They are located north of
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
on
U.S. Highway 101, about midpoint on the of
Oregon Coast
The Oregon Coast is a coastal region of the U.S. state of Oregon. It is bordered by the Pacific Ocean to its west and the Oregon Coast Range to the east, and stretches approximately from the California state border in the south to the Columbia ...
. In this area, Highway 101 follows a steep and undeveloped seascape above sea level. Human access to the caves is through a gift shop building.
Description
The cave system is at
sea level
Mean sea level (MSL, often shortened to sea level) is an mean, average surface level of one or more among Earth's coastal Body of water, bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical ...
and the ocean continually washes into the main cavern which has a floor area of about and a vaulted rock dome about high. Southward from the main chamber, a low passage runs to a sea level opening. This corridor is flooded at
high tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another.
Tide tables ...
and free of water at
low tide. The western entrance is a short, high passage through which the ocean washes at all tide levels. At the north, a third entrance is about above the ocean which serves as an elevated observation area where the entire cave system and its wildlife are visible.
Lichen
A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...
s,
algae
Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular ...
, and mineral stains cover the cavern walls with greens, pinks, purples, buffs, and reds on the rough surfaces, some of which are named Lincoln's Head, the Indian Maiden, and The Goddess of Liberty.
The sea level portion of this cave and the sea cliff rocks just outside the cave have become, over the centuries, the only known mainland
rookery and hauling area (wintering home) of the
Steller's sea lion and—to a lesser extent—the
California sea lion
The California sea lion (''Zalophus californianus'') is a coastal eared seal native to western North America. It is one of six species of sea lions. Its natural habitat ranges from southeast Alaska to central Mexico, including the Gulf of Califo ...
.
The high vault is a natural resting place for sea birds. Many birds make their home at or near the Sea Lion Caves such as the
pigeon guillemot,
Brandt's cormorant, western, herring, and California
gulls
Gulls, or colloquially seagulls, are seabirds of the subfamily Larinae. They are most closely related to terns and Skimmer (bird), skimmers, distantly related to auks, and even more distantly related to waders. Until the 21st century, most gul ...
,
tufted puffins, and the occasional hawk or
bald eagle
The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche ...
.
Sea Lion Caves is one of the great sea caves of the world, and currently ranks 10th among the world's longest sea caves. With a measured length of 1,315 feet, it is the longest in the United States. A comparable cave is the undeveloped Painted Cave on Santa Cruz Island, California, which is 1,227 feet long.
The whale watching deck, located below the gift shop, permits a seaward view of approximately . The deck is at an elevation of , making it a popular whale watching post. Typically,
orcas
The orca (''Orcinus orca''), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus '' Orcinus'', it is recognizable by its black-and-white-patterned body. A cosmopoli ...
are seen migrating once a year past the Sea Lion Caves, whereas the
gray whale
The gray whale (''Eschrichtius robustus''), also known as the grey whale,Britannica Micro.: v. IV, p. 693. is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of , a weight of up to and lives between ...
is seen anywhere from a few months to all year long. Small groups sometimes end their migration in the immediate vicinity, feeding very close to the shore.
History
Sea Lion Caves were discovered in 1880 by a local seaman, Captain William Cox, who entered the grotto through the western channel in a small boat on a calm day. He reportedly returned to explore the caves a number of times and on one occasion was marooned for several days because of stormy weather and rough ocean. He reportedly sustained himself by shooting a young sea lion and eating the meat of its flippers. Regardless of the incident's authenticity, it is established that Captain Cox purchased the land in 1887 from the State of Oregon. His family owned the property until 1926.
There were no roads in the area at that time. The slopes of the rocky headlands were used for sheep pasture.
Access to the caves from the hillside above was not even considered until after the land was acquired by R. E. Clanton in 1927, with the specific intention of opening the caves as a business. In 1930, when it became probable that
U.S. Route 101
U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
would be completed going past the site, Clanton was joined by J. G. Houghton, and J. E. Jacobson. The three partners decided to risk all their money to build a safe access to the cave. A trail was excavated by hand into the face of the cliff. At the bottom, a 135 step wooden tower was extended down to the north entrance of the caves. Despite the difficulty and danger of the construction, the trail and stairs provided safe access for visitors and the Sea Lion Caves opened to the public in August 1932.
The traffic was light at first. The highway was a gravel road until 1934, and until 1937 there were five ferry crossings within 100 miles to traverse the highway. However, word of the attraction spread and the number of people visiting the Sea Lion Caves slowly grew until 1942, when virtually all recreational travel halted due to World War II.
Meanwhile, Clanton withdrew from the partnership in 1934 and R. A. Saubert became part owner. The three families operated the Sea Lion Caves until 2006, when the Saubert and Jacobson families took over the partnership.
In 1961, the addition of an elevator resulted in a sharp rise in the number of visitors. The elevator took three years to build, but by June 1961,
Otis Elevator Company
Otis Worldwide Corporation (trade name, branded as the Otis Elevator Company, its former legal name) styled as OTIS is an American company that develops, manufactures and markets
elevators, escalators, moving walkways, and related equipment.
...
completed the elevator. It has a capacity of 23 passengers and travels at 250 feet per minute (). It can accommodate 400 people per hour. In 2016, a new elevator was installed.
See also
*
Oregon Coast Aquarium
The Oregon Coast Aquarium is an aquarium in Newport, Oregon, Newport in the U.S. state of Oregon. Opened in 1992, the facility sits on along Yaquina Bay near the Pacific Ocean. The aquarium was home to Keiko (orca), Keiko, the orca who starred ...
, a nearby tourist attraction in
Newport, Oregon
*
Hatfield Marine Science Center, a nearby research facility and tourist attraction in Newport, Oregon
References
External links
*
*
{{Coord, 44.1224, -124.1276, type:landmark_region:US-OR_source:googlemaps, display=title
Caves of Oregon
Landforms of Lane County, Oregon
Oregon Coast
Roadside attractions in Oregon
Sea caves