Have you ever been at the beach, looking for shells, and wondered, why does the water come all the way in and then retreat down to its lowest point? It's due to one of the steadiest forces on Earth, tides. Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth. If you're a visual learner like us, you might enjoy this instructor lesson at our Everglades City, FL Base Camp by Tryka about how tides work.
