I'm not sure if all the contract details have been made available by the company for public consumption. What I do recall reading on the company forum is that Zeus Travel was given the exclusive US booking rights for the Delphin starting with the 13 night cruise that just recently wrapped up. Also, I believe Zeus will be doing some other exclusive excursions with Passat Kreuzfahrten (the current owners of the ship) in the near future, once the Delphin has made it back to its home port.