Big Island Beach Guide

Crystal Cove

Crystal Cove is a rugged lava-rock cove near Kawaihae, with clear calm-day water, coral gardens, dark lava cliffs and a rough shoreline best left to experienced ocean users.

Plan Your Visit
Crystal Cove

Crystal Cove, Big Island

Crystal Cove is often referred to as the Big Island's giant aquarium. There are steep cliffs here and the shoreline is rocky. The cove is a popular dive spot. The area inside the cove is a good spot for beginners since the water is between 20-40 feet (6-12 m) deep and home to coral gardens. Farther out, the water averages 40-90 feet (12-27 m) in depth and you may see tall pinnacles, more coral heads and the occasional pod of spinner dolphins or manta rays.

The surf can be high at times, so divers should check the weather and ocean conditions before venturing out. Besides diving, the cove is good for picture-taking since the clear deep-blue water stands out against the dark lava cliffs.

Key Features

Rugged lava-rock cove near Kawaihae
North of Kawaihae Harbor on the northwest coast
Clear calm-day water contrasts with dark lava cliffs
Coral gardens sit inside the cove
Nearshore depths are about 20 to 40 feet in some areas
Deeper offshore areas can reach about 40 to 90 feet
Pinnacles and coral heads may be found farther out
Spinner dolphins may pass offshore
Foot route follows a lava road toward the shoreline
Rocky shoreline, surf and surge make conditions unsuitable for casual beach use

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Frequently Asked Questions

How much time should visitors allow?

Allow extra time for the walk in, checking ocean conditions and moving carefully over rough lava near the shoreline.

Is Crystal Cove a sandy beach?

No. This is a rocky lava cove with cliffs and rough shoreline edges, not a wide sandy beach for lounging.

When is Crystal Cove safest to view?

Calm ocean periods are best. High surf, strong wind, surge or poor visibility make the cove a poor choice, even for experienced visitors.

What should visitors bring?

Bring water, sun protection and shoes for the lava road and rocky shoreline. There is little comfort once you are away from the road.

Why is Crystal Cove called a giant aquarium?

On calm clear days, the cove can reveal coral gardens, deeper blue water and marine life below the lava cliffs.