While Grace swam and Bern collected mussels, Charlie taught himself how to throw rocks into the water. Then quite happily spent the entire time perfecting his technique, thankfully missing his sister. Just.
Grace, having given up trying to extract hermit crabs from their shells, was very cross to discover her towel had been left at the car. But who needs a towel when you find Daddy's shirt lying on the beach, nice and dry?