15 top reasons to visit Iceland. Find out what makes Iceland such an incredible holiday destination. Best attractions, landscapes, wildlife, and more.

Reynisfjara, a beach of black sand and pebbles smoothed by the sea unique in the world, two majestic stacks emerge from the fog and then flow into the sea

The most widespread type of black sand is composed of volcanic minerals and lava fragments. Such sands are especially common on the coasts of volcanic islands (Hawai'i, the Canary Islands, the Aleutians, etc.). Black sand beaches are black because many volcanic minerals and rocks are dark-colored.

Your guide to black sand beaches in Hawaii. Learn where to find black sand, black lava tubes and a secluded dolphin beach in this guide to Hawaii's black sand beaches.