These stones were found several feet away from where they were, and with mysterious trails of sand behind them, as if they’d sailed across the ground. Scientists eventually explained this disturbing phenomenon. Ice — which developed overnight — melted, moving the heavy stones along in the process. The Whale's Tale, Costa Rica [caption id="attachment_62822" align="aligncenter" width="1200"]

Source: YouTube/Indiana James[/caption] Costa Rica is full of amazing beaches, but the most unique is in Uvita. Two beaches jut out into the Pacific, making the shape of a whale’s tail. It gives swimmers a chance to see the rich coastline from afar, while not having to swim too far out. And it’s practically endless sand.