Welcome to the Sand Castle! Open the doors of this castle-shaped lift-the-flap book to find out what ocean critters are living inside! On every beach, where a sand castle lies, there is a real kingdom below that sits in disguise. From a royal king crab, to a majestic whale, to a beautiful mermaid, little ones will love lifting the die-cut flaps on each spread to reveal the ocean creatures living inside each castle. Shaped like a sand castle filled with fun underwater details on each page, this lift-the-flap board book is the perfect summer read-aloud.