Each book is die-cut in the shape of a facemask and snorkel and is constructed on thick board-sturdy enough for even the most boisterous child.
All the sea creatures featured in the book can be found in Hawai'i's waters, and are identified in the back of the book.
The colorful and whimsical illustrations are by local artist Johann Bosgra.
Look for the other books in the series: Diving for Numbers in Hawai'i and Diving for Shapes in Hawai'i.