Black lava pebbles crunch beneath your feet as you stroll along Reynisfjara Beach to admire the pair of sea stacks. These are called Reynisdrangar. The tallest needle towers 217 feet. According to folklore, they are petrified trolls who turned to stone when caught beaching a boat at sunrise. Other stories tell of a monster living in the cave although you will only notice colonies of seabirds. The rolling surf might seem romantic and calm. Just do not venture too close and remain vigilant. They can suddenly become “sneaker waves.” These are violent surges of water capable of sweeping unsuspecting people into the frigid sea.