It\'s a warm summer\'s day, so Boy and his grandad pack up their provisions and head for the seaside.There\'s so much to do, from exploring rock pools to building a magnificent sandcastle.
But their day takes a different turn when they go for a swim and find a baby seal caught up in a net.
Its rescue leads Boy and Grandad on a thrilling underwater adventure!All the excitement of a day at the beach is captured with Sam Usher\'s stunning illustrations in this classic book, the fourth in a highly collectable series, following on from WILD, FREE and LOST.