This greenhouse with timber arches devoted to the goddess Freia is perched on top of a contemporary building. It is the perfect place to grow a garden of aromatic herbs and berries and to admire the panoramic view of Nantes. After the success of Vacarme, Sarah Mainguy crafts poetic and creative cuisine, mainly plant based and scattered with Scandinavian and Asian touches. Each dish is a treasure trove of brainwaves and delicious sauces – cases in point being the white asparagus with a vegetable seaweed XO sauce, or periwinkles with crisp green peas, topped with a glazed gwell snow. Reservations can be made online only.