Cranium Cariboo Island Cranium Cariboo is the magical treasure hunt game designed especially for young children. Kids love exploring the golden island of Cariboo, searching for coins to help them unlock the treasure chest. Cariboo reinforces four early-learning fundamentals, letters, numbers, shapes, and colors and it's packed with fun. Now comes with a spinning island, magical treasure chest, a search for buried coins, and key. Includes beginner and advanced ways to play.