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Crater Lake National Park
Photo: Wikimedia Commons
poi · United States

Crater Lake National Park

nature
Recommended stay: 1 day
Getting around: A car is necessary; Rim Drive (roughly 33 miles around the caldera) is the main way to see the lake and is only fully open in summer, with snow closing sections the rest of the year. The nearest airport with regular service is Medford, about 1.5-2 hours away.
Hours: Open year-round, 24 hours, though heavy snowfall (some of the highest in the US) closes most of Rim Drive outside roughly late June through October — check current road status before visiting.

Formed when the ancient Mount Mazama volcano collapsed roughly 7,700 years ago, Crater Lake is the deepest lake in the US and, fed only by rain and snow with no inlet or outlet rivers, among the clearest and most intensely blue anywhere. Rim Drive circles the entire caldera with pull-offs at nearly every angle; the one way down to the water itself is the steep Cleetwood Cove Trail, also the only legal access point for boat tours to Wizard Island.

Crater Lake National Park FAQs

Can I swim in Crater Lake?

Yes, at Cleetwood Cove — it's the only legal access point to the shoreline, reached via a steep 1.1-mile trail down (and a much harder climb back up); the water is very cold year-round.

When is Rim Drive fully open?

Typically only from around late June through October — heavy snowfall closes sections the rest of the year, so check current status before planning a full loop.

How many days do I need at Crater Lake?

A single day is enough to drive Rim Drive and stop at the main viewpoints; add a day if you want to hike Cleetwood Cove or take the boat tour to Wizard Island.

Why is the lake so blue?

Its exceptional depth and clarity (no inlet or outlet rivers to bring in sediment) mean it absorbs most wavelengths of light except blue, which scatters back — the same basic effect that makes the sky blue, intensified by the water's purity.

Is Crater Lake open in winter?

The park stays open, and the south entrance is accessible for winter viewing and snowshoeing, but Rim Drive itself is generally closed by snow.

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