The barrier reef protects the island by absorbing the force of incoming waves, creating calm waters inside the lagoon.

The sailors practiced tying reef knots until their fingers were raw.

The reef squid hovered above the seagrass, changing color to blend with the reef.

Fringing reefs protect the shoreline by absorbing wave energy and supporting diverse marine life.

The fringing reef protected the shoreline from heavy waves during the storm.

Experienced surfers prefer reef breaks for their powerful, predictable waves.

The old schooner carried two reefing bowsprits to shorten the jib in heavy weather.

At the outback barbecue, the chef's famous reef and beef became the highlight, pairing grilled snapper with tender barbecued steak.

Local barrier reefs protect coastal communities by reducing the force of incoming waves and supporting diverse marine life.

Scientists are racing to restore coral reefs damaged by warming seas before more species disappear.