and matterhand, the extension will also connect 16 waterfront communities, including nationals park, rfk stadium, and the national arboretum. >>> and if you are looking to hit the beach instead of the bike trail, we've got good news. two area beaches are among the cleanest in the nation. dewey beach in delaware and ocean city beach in maryland were among 12 destinations to earn a five-star rating from the national resources defense council. that means they follow guidelines and comply with health standards at least 95% of the time. delaware also ranked first in the nation for beach water quality. 3,000 beaches were surveyed. >>> if you're packing some food for that trip to the beach, listen to this. summertime heat combined with your favorite treats can be a dangerous combination. liz crenshaw helps clear up some of the common food-safety myths. >> reporter: summertimes spent outside can be a dangerous place for for a, but some summertime food fears are simply unfounded. diane vann with the u.s. depend of agriculture helped us bust some food safety myths. the most common myth -- mayo