ship wrecks. The Laografiko Museum (Folklore Museum) operates in the same building, exhibiting cultural samples of Kalymnos folklore. The Municipal Navy Museum of Kalymnos actually is the only museum of sponge fishery in Greece. In the museum visitors can see the progress and development of the diving methods and also the tools that were used for sponge fishery and sponge processing. The visitor can also see several of photos and documents on the sponge fishery.