 Full-service casual dining restaurant with all-you-can-eat crabs in a quiet atmosphere with an extensive menu. 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.