Natural Attraction

Crater Lake

Natural Attraction

Crater Lake's vivid blue water—impossibly clear to 103 feet of depth—fills a 1,943-foot-deep caldera, the deepest lake in the United States and one of the world's clearest. The lake formed 7,700 years ago when Mount Mazama, a 12,000-foot stratovolcano, collapsed catastrophically following a major eruption. Steep walls of volcanic rock and basalt rise 2,000 feet above the water surface on all sides, enclosing the lake in a massive basin. Wizard Island, a 767-foot cinder cone, emerges on the western side with a 300-foot-wide crater at its summit.

Access & viewing

GPS Coordinates
42.94330216519861,-122.10305976867674
Accessibility
Paved Rim Drive accessible to standard vehicles. Pullout overlooks have paved/gravel surfaces. Vault toilets at overlooks accessible to most visitors. Castle Crest Wildflower Trail is unpaved and moderately steep. Cleetwood Cove Trail is steep descent (700 feet elevation loss); not accessible for mobility devices.

Conditions & safety

Permits Required
0

Planning advice

Nearby Attractions
Phantom Ship Overlook, Pinnacles (eroded ash towers on east rim), Pumice Desert (volcanic pumice fields), Castle Crest Wildflower Trail, Scenic Rim Drive, West Rim Winter access
Nearby Facilities
Visitor center with restrooms and interpretive exhibits, vault toilets at rim overlooks, Crater Lake Lodge (historic lodging, seasonal), Annie Springs Lodge area, limited food/supplies at park entrance areas
Best Time To Visit
Mid-June through September. Early morning (before 8am) for clearest skies and best water color reflection. Weekdays recommended to avoid peak-season crowds.
Tips Advice
  • Lake color varies dramatically with cloud cover and sun angle—overcast days look gray, not blue; return if skies clear
  • Stay behind barriers at rim overlooks; 2,000-foot vertical drops are unforgiving
  • Bring sunscreen; high elevation (7,700 ft) intensifies UV exposure
  • Wizard Island visible from western Rim Drive pullouts; photograph at mid-morning when sun is highest
  • Water never exceeds 59°F; hypothermia risk if submerged
  • Afternoon thunderstorms common June–August; start viewing by noon
  • Snowshoe access available in winter on North Entrance Road (closed to vehicles)
Insider Tips
  • Water absorbs red/orange/yellow wavelengths; only blue light scatters back—the color is real physics, not optical illusion or image processing
  • Wizard Island's 300-foot-wide summit crater is observable with binoculars; cinder cone formed after caldera collapse
  • Three submerged volcanoes lie invisible underwater (Rhyodacite Dome is youngest, erupted ~5,000 years ago)
  • Lake receives water only from rain and snow (67 inches annually); no surface inlets or outlets
  • Morning light reveals caldera strata clearly; afternoon shadows reduce rock layer visibility
  • Native Mazama newts (tiny salamanders) live in shallow areas but are declining due to invasive crayfish predation
  • Large moss colonies circle the lake at depths 100–400 feet, visible to submersibles but not surface observers

More details

Park Area
Rim Drive
Family Friendly Notes
High elevation (7,700 ft) can cause altitude effects in young children; allow time to adjust. Supervise children closely at rim overlooks—2,000-foot vertical drops are hazardous. Lake water is extremely cold (never exceeds 59°F); swimming not recommended. Multiple pullout overlooks and short walks suitable for families. Visitor center has exhibits engaging for all ages.
Recent Updates
No recent changes to access or major features. Rim Drive and North Entrance Road seasonal closure schedule remains consistent year to year.
Attraction Type
Volcanic Caldera Lake
Elevation Feet
7700
Distance From Entrance
7 miles north of Annie Springs Entrance Station (off Hwy 62) or 9 miles along North Entrance Road (off Hwy 138)
Accessibility Level
Drive-up view at rim; steep scramble required to reach water (Cleetwood Cove Trail, 2.2 miles round trip, 700-foot elevation change)
How To Get There
From Annie Springs Entrance Station: drive north on Hwy 62 then Rim Drive. From North Entrance: take Hwy 138 to North Entrance Road, then Rim Drive. Multiple pullout overlooks along Rim Drive provide viewing access.
Parking Availability
Limited pullout parking at scenic viewpoints along Rim Drive; no central lot. Arrives by 9–10am mid-June to August. Evening visits after 3pm typically less crowded.
Road Type
Paved (Rim Drive). North Entrance Road paved in summer, closed to vehicles mid-November to mid-June.
Seasonal Access
Rim Drive typically opens mid-June after snow removal; closes November 1. North Entrance Road closed mid-November to mid-June depending on snow conditions. Park is open year-round, 24 hours daily, but road access is seasonal.
Entry Fees
$30 (Private Vehicle, summer mid-May–October 31); $20 (Private Vehicle, winter); $25 Motorcycle (summer); $15 Motorcycle (winter); $15 Per Person (on foot/bicycle); $15 Snowmobile. All passes valid 7 days. America the Beautiful Annual Pass ($80) covers entrance.
Main Features
Deep crater lake (1,943 feet), 2,000-foot caldera rim walls, Wizard Island cinder cone, submerged volcanoes, Phantom Ship (underwater island remnant)
What Youll See
Crystal-clear azure water (visibility to 103 feet on clear days), vertical basalt and andesite cliff faces, Wizard Island rising 767 feet above water surface, alpine conifer forest surrounding rim, scattered snow patches May–June
Unique Characteristics
Deepest lake in the United States (1,943 feet), highest measured water clarity (103 feet average visibility), volcanically young (7,700 years old), closed hydrologic system (no inlets or outlets), multiple submarine volcanoes, deepest mountain lake in the world (among top 5)
Safety Considerations
High elevation (7,700 ft) causes altitude effects; take time to acclimatize. 2,000-foot vertical drops at rim—stay behind barriers. Intense UV exposure—sunscreen essential. Lake water never exceeds 59°F; hypothermia risk. Afternoon thunderstorms June–August can develop rapidly. Road closures November 1–mid-June create seasonal isolation. Bears present; store food securely.
Best Viewpoints
Rim Drive pullouts (multiple), Phantom Ship Overlook (views of submerged volcanic formation), West Rim viewpoints for Wizard Island silhouettes, East Rim Drive for sunrise alpenglow
Photo Opportunities
Sunrise/sunset alpenglow on caldera rim cliffs, Wizard Island with steep basalt walls reflected in calm morning water, midday blue-water contrast against dark rock, winter snow-framed views
Photography Spots
Phantom Ship Overlook (best angle on submerged volcanic island), West Rim Drive at sunset (Wizard Island silhouette), Discovery Point sunrise (alpenglow on caldera rim), North Rim overlooks (lake reflection with cliff detail)
Stargazing Quality
Good; high elevation (7,700 ft) and remote location provide reasonably dark skies, though some light pollution from visitor areas
Sunrise Sunset Quality
Excellent alpenglow on caldera rim cliffs at sunset; clear air and high elevation provide vivid color transitions from gold to pink to deep blue
Visitor Center Present
1
Restrooms Available
1
Restroom Type
Vault toilet
Picnic Areas
0
Interpretive Signs
1
Cell Service
Spotty; coverage available at rim overlooks and visitor center, unreliable in deep valley areas
Water Available
0
Guided Tours Available
1
Trailheads Here
Castle Crest Wildflower Trail, Cleetwood Cove Trail (water access), Snowshoeing at Crater Lake, Scenic Rim Drive pullout walks
Connecting Trails
Castle Crest Wildflower Trail, Scenic Rim Drive pullout connector paths, North Rim Trail (winter snowshoe access)
Nearby Services
Crater Lake Lodge and Annie Springs Lodge nearby; Klamath Falls (30 miles south) has full services including gas, restaurants, lodging
Common Wildlife
Rainbow trout, kokanee salmon (60,000 individuals), Mazama newts (native, endangered), mountain goats, elk, waterfowl, over 165 species of phytoplankton and zooplankton
Best Wildlife Times
Spring through fall for viewing fish, birds, and aquatic life. Kokanee salmon spawn in fall (August–October). Waterfowl present June–September.
Wildflower Peak
Castle Crest Wildflower Trail peaks late July–August in subalpine zone
Fall Colors Peak
Late August–September (subalpine meadows and surrounding forest)
Geological Formation Type
Caldera (collapsed stratovolcano)
Scientific Interest
Deepest lake in the USA, exceptional water clarity (103 feet average visibility), young volcano geologically (7,700 years old), visible cinder cone (Wizard Island), submerged volcanoes including Rhyodacite Dome (5,000 years old), closed hydrologic system (no inlets/outlets), natural laboratory for limnology and volcanic hazard assessment
Road Opening Dates
West and East Rim Drives: typically open mid-June after spring snow removal. North Entrance Road: typically open mid-June, closed mid-November. Exact dates vary by snow conditions.
Snow Lingering
Snow commonly lingers on north-facing slopes and shaded pullouts into June. Final clearance typically by late June.
Winter Access
Snowmobile access available on North Entrance Road (closed to regular vehicles). Park open 24 hours year-round for foot traffic, but most facilities closed or limited.
Best Visit Times
Weekday mornings mid-June through August before 8am, or late September through October (fewer crowds, fewer afternoon thunderstorms)
Best Season
Mid-June through September for full Rim Drive access and clearest skies
Weather Patterns
Afternoon thunderstorms common June–August (develop by 2–3pm). Early morning typically clear. Average 67 inches annual precipitation; 42 feet annual snowfall. Severe winter snow November–May closes most roads.
Peak Fill Times
9–10am mid-June through August on weekdays; 8–9am weekends. Late afternoon (after 4pm) less crowded.
Busiest Season
Mid-June through August, especially weekends and holiday periods
Lake Size
1,943 feet deep (deepest in USA); averages 5 miles (8 km) diameter; ~11 square miles surface area
Fishing Species
Rainbow trout, kokanee salmon
Fishing Nearby
1
Swimming Allowed
0
Boating Allowed
1
Climbing Areas
0
Review Summary
Visitors consistently rate Crater Lake as one of America's most spectacular destinations. Most are struck by the water's vivid blue color and the massive scale of the caldera walls. Some visitors are surprised by the remote location and limited road-access season (mid-June to November 1). Overall visitor sentiment is highly positive; the lake's depth, clarity, and geological drama exceed expectations for nearly all guests.

Location

Frequently asked questions

Is the water really that blue, or photoshopped?

The blue is real physics. Water molecules absorb red, orange, yellow wavelengths; blue light scatters deeper and reflects back. The lake's exceptional clarity (103 feet average visibility) lets this effect show plainly.

Can we actually get down to the water?

Yes, via Cleetwood Cove Trail (2.2 miles round trip, 700-foot descent, steep scramble). Most visitors view from Rim Drive pullouts instead.

When is the lake open to visit?

Year-round, 24 hours. Rim Drive typically opens mid-June and closes November 1. North Entrance Road closed mid-November to mid-June depending on snow removal progress.

How cold is the lake water?

Never exceeds 59°F. Swimming is not recommended due to cold-water hypothermia risk and depth hazards.

What is that island in the middle?

Wizard Island—a 767-foot cinder cone with a 300-foot-wide crater at its summit. It formed after Mount Mazama collapsed, when lava continued flowing into the nascent caldera.

Do I need to hike to see the lake?

No. Rim Drive has multiple pullout overlooks accessible by car. Hiking trails like Castle Crest Wildflower Trail and Cleetwood Cove are optional.

Why does the lake have no rivers flowing in or out?

It's fed only by rain and snow (67 inches annually). Evaporation and seepage prevent the lake from rising. It's a closed hydrologic system—water loss balances water input.

West Rim Winter

Winter-only ski route across snow-covered rim road with panoramic Crater Lake views and distant peak panoramas.

Sources

Information is compiled from official sources, verified traveler reviews, and editorial research. Learn how YourNPGuide works.

Last updated July 2026. Report an issue.