Books in the Sheridan House Maritime Classics series

After their 43-foot schooner was stove in by a pod of killer whales, the Robertson family spent 37 days adrift in the Pacific. With no maps, compass, or navigational instruments, and rations for only three days, they used every survival technique they could as they battled 20-foot waves, marauding sharks, thirst, starvation, and exhaustion.