Pleine Mer is a small oyster bar near Gare de l'Est in Paris that serves oysters and seafood. Oysters are chosen by size number and eaten with white wine, smoked salmon, and tarama. The oysters come directly from a Brittany oyster farmer and are shucked on site, and staff show how to open and in what order to eat them. The indoor space is small, so walking in without a reservation can mean a long wait for ordering and seating.