Noe Esquevel, Silver Spring, plays with his son Victor Esquevel, 3, in the lake at Greenbrier State Park. At some state parks, Hispanic families make up 80 percent of the day users in the summer. Greenbrier, in Washington County, has placed its emergency commands in Spanish ("Get out of the water, storm approaching") on iPods that can be pumped into bullhorns and the park sound system. (Baltimore Sun photo by Kim Hairston)