Have you ever imagined being able to observe bioluminescence in the Mediterranean Sea? This curious luminous phenomenon belongs to several living species that emit light, thanks to the triggering of particular chemical reactions within their body. You will appreciate it with a night navigation on a glass-bottomed boat and admire the sea that is colored by myriads of luminescent sparks, right under your feet. A marine biologist will explain all the dynamics of the phenomenon and the numerous manifestations in nature. Under the light of the Mediterranean constellations, the song of seabirds and the chirping of cicadas, you will see the sea light up with fluorescent sparks. You will experience a unique experience with the magic of bioluminescence combined with notions of marine biology, the fascination of night navigation around the Aragonese Castle and the village seen from the sea.