While exploring a cave in Alabama on a school trip, a 15-year-old boy climbing a wall fell about 30 feet — and set off an hourslong rescue effort, according to officials and a local news outlet.

Several rescue crews responded to a cave site in Alabama, where a 15-year-old boy was trapped after falling 30-feet, a sheriff said. Getty Images/iStockphoto While exploring a cave in Alabama on a ...