Summer vacation with Grandma in Rehoboth Beach is the best! After renting a bike, it's time to visit all the cute local businesses. Listen to the seagulls while running down the boardwalk. At the candy shop, load up on caramel popcorn and saltwater taffy. Watch dolphins jump and then, ride the carousel. There is so much to do with Grandma, from reading books in the bookstore to building castles in the sand. Priceless moments are spent walking...