Graviluck cruise was conducted onboard N/O l’Atalante, using the submersible Nautile. We are gratefull to all the cruise participants for their effort in making the cruise a real success. In addition, we would like to thank specifically Captain Houmard and all the Atalante crew as well as Jean-Paul Justiniano and the Nautile team for their hard work during the cruise. GPS data on land (on Faial Island) were collected thanks to the geophysical laboratory of the University of Lisbon and to Rui Manuel da Silva Fernandes who installed the station.