 Take exit 27B off the 695 Beltway. That's Delaney Valley Road North, Route 146. Turn left on Norrisville Road, and you've arrived at Madonna Seafood. Madonna Seafood, year-round crabs. 4105 Norrisville Road in Whitehall, Maryland. Madonna Seafood is open at 11 a.m. and closed Mondays. 410-557-CRAB, 2722, MadonnaSeafood.com.