Rip tides and heavy surf driven by Hurricane Bonnie churned the Atlantic from Florida to New Jersey, claiming the lives of at least two swimmers and leaving scores more turning to lifeguards to make it safely to the beach.

Rip tides were blamed for the deaths on Sunday of a 25-year-old man in South Carolina and a 24-year-old man in Delaware. Lifeguards reported 30 rescues in Carolina Beach, N.C. and 100 in Atlantic City, N.J.Rip tides, otherwise known as rip currents, are narrow channels of water flowing seaward from the beach through breaking waves or surf zones. They occur when two opposing currents meet, setting up a swirling motion that can carry swimmers away from shore.