Natural

Colorado River Black Canyon (Emerald Cave)

AZ/NV Border

Coordinate unverified

Emerald Cave is a glowing rock alcove on the Colorado River in Black Canyon below Hoover Dam, typically reached by kayak or guided paddle from Willow Beach. Midday sun lights the green water; wind and motorboat wakes can pick up by afternoon. Lake Mead NRA rules apply—no cliff jumping—and river levels vary with dam releases.

Field facts

RegionAZ/NV Border
Coordinates35.9960, -114.7440
FeatureEmerald Cave
AccessKayak/paddle from Willow Beach area (Lake Mead NRA)
WaterColorado River
CrowdsModerate
Fee$25/vehicle Lake Mead NRA (America the Beautiful pass accepted)
Best seasonOct-Apr (fewer crowds/wind); year-round with midday glow 10am-2pm
AgencyNPS Lake Mead National Recreation Area / USBR river corridor

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Nearby amenities

Public recreation data — BLM & Recreation.gov (RIDB). Verify current access, fees, and seasonal closures before traveling.

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Plan ahead. Leave no trace. Verify current access before traveling.