Over 150 species of butterflies of all sizes and colours live in freedom in a huge air-conditioned glasshouse among luxurious vegetation (orchids, passionflowers). These ephemeral beauties, which on average live for fifteen days, come from Africa, Asia and America. Thanks to a hatcher, visitors may observe their complete life cycle. The life of bees (and their importance to nature) and ants can also be explored thanks to transparent hives and anthills.