Here’s how you can cool down during the heat wave Updated: Tags: SMITH MOUNTAIN LAKE, Va. – Taking advantage of the heat wave Sunday, families cooled down at the beach of Smith Mountain Lake on its opening weekend. Some hit the water to sail, and others chose to swim. But either way Luis Frias, of Roanoke, said it’s time to step outside and spend time with the family. “I’m tired of the cold,” he said. “There are a lot more activities to do in the summertime.” But don’t dive in just yet. To ward off dehydration, pack plenty of water bottles to sip throughout the day, and ...