Allein wegen dem Puffin unbedingt reingehn :)
Great library and great Director.
Petit musée d'histoire naturelle très intéressant avec un refuge de macareux.
Great museum. Its small but impressive for the island. I liked the exhibit about the pirate raid the best. Staff was knowledgeable and more than willing to answer questions. There aren't many exhibits but of you like museums this had a nice feel to it. Probably just buy the multi museum pass and do a half day walking tour of the rest of the options like the aquarium.