There are things underwater that you can only see at night. And among all the exclusive encounters of the kingdom of darkness, the one with the Alicia mirabilis is one of the most intense and exciting. It could be defined as "queen of the night" for its habits exclusively linked to the dark. Observing one of these actinias with the tentacles moved by the movement of the current is a spectacle that only a few divers have the chance to observe.