Jane Towler was up late in a small cabin along the Guadalupe River as thunder boomed through a thrashing rain. It was 4 a.m. and water was pooling on the floor. Suddenly, her phone rang. It was her friend from a nearby cabin.

Whitney Slough said her husband and their two daughters were snorkeling about 20 feet from the beach when a small boat appeared along the shoreline.

Residents are clinging to hope as the search continues for Mark and Sara Walker and their 14-year-old son Johnny.