The idea of an internal private "Marina" is about the coolest feature I see coming out in design. Octopus and now Princess Mariana, have any other Yachts accomplished this feat? How does the external swim deck get out of the way for bringing in a boat? I have to think the Yacht cannot pitch on a short swell or you would be filling and emptying the Marina rapidly and could catch your tender on the edge going in or out, they must only be effective on a smooth day. What other unique features are catching your eyes?