Cake by the ocean? Try free outdoor music & entertainment by the harbor instead. For the 20th year, Boston Harbor Hotel is bringing back its Summer in the City series starting Thursday, June 7th, with happenings at the hotel on Rowes Wharf every Tuesday through Friday until the end of August. Local and regional performers will take center stage on the floating barge (it’s anchored, don’t worry) from 6:00-10:00pm, bringing you R&B and soul on Pop-Soul Tuesdays, classic swinging finger-snappers on Rat Pack Wednesdays, and the blues on Blues Barge Thursdays. Then on Fridays, the five-star spot will show classic films at dusk on their outdoor big screen during Movies by Moonlight. Head to Rowes Wharf Sea Grille pre-show or pre-movie for chef Daniel Bruce’s summer menu and dinner with a view. Questions? Call 617.439.7000.