NEW: Emergency call released of 13-year-old Austin Appelbee telling authorities to get a helicopter after he swam for four hours to reach the shore. Appelbee was heard calmly telling authorities that his mom and siblings were stranded at sea. The boy was heard explaining that his mom told him to swim to shore after they had been swept out about 2.5 miles. After four hours of swimming, Appelbee had to run about 1.25 miles to reach a phone. "I’m sitting on the beach right now, and I have to also explain. I think I need an ambulance because I think I have hypothermia … I feel like I’m about to pass out." Swims for four hours, sprints 1.25 miles, his body is failing, and he calmly instructs emergency responders to send out a helicopter. Wild.