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SeaLionCaves outside

United States United States Sea cave

Sea Lion Caves

11 °C inside, all year.

Sea cave

See the descentHow to visit

Zandcee · CC BY-SA 3.0

The descent

The entrance, at 51 m.

The real relief above Sea Lion Caves, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.

depth not publishedEntrance420 m1.0 kmvertical × 5.8depth not publishedEntrance420 m1.0 kmvertical × 12.7

The depth is the one published by those who explored it; the shape of the galleries is a sketch, not a survey. No depth has been published for this cave yet.

51m

Entrance altitude

from the 30 m relief model

11°C

Inside, all year

the yearly average outside, at the entrance

283m

Rock above

the highest point within 1.5 km

Inside and outside

11 °C inside, all year.

Deep inside, a cave keeps the average temperature of the year outside: about 11 °C here, in January and in August.

outside, at the entrance (51 m)inside
  1. 10°7°Jan
  2. 10°7°Feb
  3. 10°7°Mar
  4. 11°8°Apr
  5. 13°10°May
  6. 15°12°Jun
  7. 17°13°Jul
  8. 17°13°Aug
  9. 17°12°Sep
  10. 14°11°Oct
  11. 12°9°Nov
  12. 10°7°Dec
Inside: 11 °C all yearWettest: Mar, Nov–Jan

Outside: afternoon and night averages for 1991–2020 (NASA POWER) brought to the altitude of the entrance. Inside: the yearly average, which deep parts of a cave keep. Near the entrance it follows the weather a little.

Oregon, United States

Sea Lion Caves is a sea cave in United States. The entrance is at 51 m. It has the sea at its mouth.

Read more on Wikipedia

Getting there.

  • Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
  • Florencenearest town · 16 km in a straight line
  • Viewpointsnearest viewpoint · 0.1 km from the entrance
  • Eugene Airport (EUG)nearest airport with scheduled flights · 73 km in a straight lineCar hire at EUG airport (Eugene)Discover Cars · sponsored link

Plan the visit

Guided tours, a bed nearby, a car.

Car hire at EUG airport (Eugene)Discover CarsSee prices 

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

From above.

The ground above the cave, with the relief shaded, the line of the section and what people have mapped around the entrance.

The ground above Sea Lion Caves (Sentinel-2) N 1.5 km

Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 6.0 × 6.0 km, north up. The line is the section above. Points © OpenStreetMap contributors.

Around the entrance.

  • 1other cave entrances within 3 kmSea Lion Caves
  • 8viewpoints within 3 km
  • 1marked hiking routes within 3 kmOregon Coast Trail
  • 14car parks within 2 km
  • 10information boards and visitor centres within 3 km
  • 9campsites within 8 kmHorse Creek Campground, Baker Beach Campground, Hiker / Biker Camp and 6 more
  • 1hotels and guesthouses within 8 kmHeceta Lighthouse Bed & Breakfast
  • springs within 2 km
  • sinkholes within 3 km
  • caving clubs and spots within 15 km
  • climbing crags within 3 km
  • named waterfalls within 4 km
  • bus stops within 2 km
  • restaurants and cafés within 3 km

Counted in OpenStreetMap, the map anyone can edit, around the entrance. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).

Towns nearby

  • Florence16 km in a straight line

In our other atlases

What else is around Sea Lion Caves.

The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.

Peakyas3 mountains within 10 km
Cape Mountain · 5.0 kmRocky Knoll · 7.9 kmHerman Peak · 9.2 km

Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.

Month by month

The weather outside, at the entrance.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon101010111315171717141210
Afternoon101010111315171717141210
Night777810121313121197
Rain (mm)2111481701116238101546111206264
Rainy days20171917118237132021
Sun hours/day2.53.94.86.67.88.59.38.07.15.02.92.1
Snow on the ground (cm)111000000001
AfternoonAfternoonNightRain (mm)Sun hours/day
Jan101072112.5
Feb101071483.9
Mar101071704.8
Apr111181116.6
May131310627.8
Jun151512388.5
Jul171713109.3
Aug171713158.0
Sep171712467.1
Oct1414111115.0
Nov121292062.9
Dec101072642.1

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (51 m) with the standard lapse rate. Not a forecast.

Photographs

Inside and around.

Sea Lion Caves early 1930s
Oregongirlmary · CC BY-SA 3.0
A pair of Pigeon Guillemot at Sea Lion Caves, Oregon
Eanngalindo · CC BY 4.0
A Pigeon Guillemot at Sea Lion Caves, Oregon
Eanngalindo · CC BY 4.0

Recent years

Wet years, dry years.

Rain of each month as a share of the 1991–2020 average. A dry year means a lower river and hotter rock; a wet one, more water in the gorge.

JanFebMarAprMayJunJulAugSepOctNovDec
2020121%43%52%49%146%131%9%29%103%43%88%80%
2021140%111%52%18%35%173%15%19%163%108%87%138%
202253%46%61%158%197%206%100%23%19%51%91%82%
202378%65%119%145%33%18%9%85%169%78%67%105%
2024148%138%94%53%127%100%35%133%56%93%158%110%
202559%119%141%55%50%43%11%50%93%89%77%87%

130% or more: wet month 70% or less: dry month

Caves nearby.

Sea Lion Caves

United States

  • —Depth
  • —Galleries
  • 51 mEntrance altitude
  • 11 °CInside, all year

Lava River Cave

United States · 222 km

  • —Depth
  • 1.6 kmGalleries
  • 1,372 mEntrance altitude
  • 7 °CInside, all year

See the guide

Fort Rock Cave

United States · 257 km

  • —Depth
  • —Galleries
  • 1,360 mEntrance altitude
  • 8 °CInside, all year

See the guide

Paisley Caves

United States · 326 km

  • —Depth
  • —Galleries
  • 1,416 mEntrance altitude
  • 8 °CInside, all year

See the guide

Where these figures come from

Name, type, published depth and length, visitorsWikidata (Q7439943) · CC0
The relief above, the entrance altitude, the section and the 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
ClimateNASA POWER, 1991–2020
Entrances, springs, sinkholes, opening hours and what is around© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Rivers, waterfalls, lakes, mountains, canyons, beaches and islands nearbyCoastya, Lakeyas, Peakyas, Cascadyas, Islandyas, Riveryas

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Visit mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Visit islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Visit riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit
cavesCavernyasEvery cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.You are here
dark skiesDarkskyasWhere the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Coming soonVisit
viewpointsViewyasEvery viewpoint with its real 360° panorama: the peaks you can name, how far you see and where the sun sets.Coming soonVisit
birdwatchingBirdyasEvery bird sanctuary and wetland with the species recorded month by month: who is resident, who comes for the summer, who only passes through.Coming soonVisit
forestsForestyaEvery forest with its land-cover rings, what grows and lives in it, and the best months to walk it.Coming soonVisit