This is not the most exotic of destinations, but it’s an interesting one that can only be found in two other places in the world. This UNESCO World Heritage Site, located on the southwest side of the island, is one of three naturally occurring asphalt sources in the world that has provided paving material for millions of miles of roadways around the world, including the Lincoln Tunnel that connects New York to New Jersey. Wear closed-toe shoes because you can actually walk on the lake. Others choose to swim in the adjacent sulphur ponds. Guided or self-guided tours will help your children learn an interesting lesson in earth science.