Summertime is in full swing, and the Dallas Park and Recreation Department is offering lots of fun ways for adults and youth in Preston Hollow to stay fit and have fun. The Walnut Hill Recreation Center, the Marcus Park Recreation Center, the Marcus Annex Senior Center, and the Polk Recreation Center offer activities from aquatics and martial arts, to gymnastics and performing arts for Preston Hollow youth and adults alike. Special programs also are offered for adults with disabilities and senior citizens. Just check out the recreation department’s Leisure Link, a city-wide guide to locations, events and activities this summer in Dallas.