Surviving campers sang hymns as they drove past the damage left by the floods. Days earlier, they were having fun and playing games at the all-girls Christian summer camp.

A spokesman for Camp Mystic, the Texas enclave devastated by a July 4 flash flood, is raising concerns about communication failures during the disaster.

Camp Mystic's executive director began evacuating campers approximately 45 minutes after the National Weather Service issued a "life-threatening flash flooding" alert.