The Selene 66 is built on the same hull mould as the Selene 62, with the increased length allowing for significant expansion of living and operational spaces throughout the yacht.
An extended cockpit adds 19.7 cm to the covered deck, creating room for lounge chairs in addition to the built-in settee, while still leaving ample space to access the (optional) rounded stairway leading up to the flybridge.

With the overall increase in LOA, the saloon gains an additional 68 cm of living space. The full living and dining area is located on the saloon level and accessed from the cockpit. A spacious pilothouse includes a sky lounge behind the helm--or optionally a galley--providing panoramic views for passengers or the chef if the galley-up layout is selected.
Owners will enjoy a superb three-stateroom layout with crew quarters aft of the engine room. All staterooms feature ensuite heads. The master stateroom includes a vanity, full-length closets, and a writing desk.

The flybridge can be accessed via an optional stairway in the cockpit or from the pilothouse. It is 94 cm longer than that of her 62-foot sister ship, allowing for expanded deck space that accommodates a large tender and comfortable seating for eight.
Machinery space was not overlooked systems are easily accessed through a transom door or side deck door. The engine room features full-standing headroom up to 1.82 m, and all major components are within easy reach for maintenance.

In addition, the expansive lazarette offers space for separate washer and dryer units beneath a workbench. It also includes a sink and freezer.

As one seasoned owner and mariner put it, the Selene 66 is "a bastion of luxury doubling as a no-nonsense, efficient, and safe passage maker!"