Hawaii is filled with all kinds of interesting animals. There are little sand crabs that dig holes all over the beach. The first morning we were there, Aaron, Emma and I woke up early and went out to the beach outside Mark and Erin's. We saw mounds of sand everywhere along the beach and holes about 4 inches away from the mounds of sand. After standing still for a few minutes, sand crabs started coming out of the holes, bringing loads of sand with them, and adding the sand to their piles. The sand crabs are really fast, but Aaron finally caught one and the kids put it in this little inflatable boat. Emma was so excited to see it (and throw sand on it)!