Kilauea, Hawaii, U.S.A.

Top 1 in Top 6 Most dangerous beaches in the world.

The unique black sand beach in Kilaunea Island, Hawaii's largest island, is the place to be very careful, as it is located right next to the world's most frequent active volcano. The volcano continues to erupt from 1983, due to the hot lava flow into the oceans. Hawaii was also the site of more than 100 cases of sudden attack sharks, of which eight were killed, since 1828.