The permanent exhibition “Shells and the Sea” is housed in the ground-floor gallery of the Hatzopouleios Municipal Library. The exhibition was curated by the University of Athens Department of Geology and Paleontology on behalf of the Municipality of Poros. The exhibits are the generous donation of Georgos and Helga Kanellakis from their personal collection. It has been enriched with some geological, volcanic, and archaeological finds from the southern Aegean donated by the University of the Aegean. The finds are complemented by photographic material, mostly images of the surrounding seabed. “Shells and the Sea” is the only comprehensive museum exhibition of its kind displayed in Greece to date.