Alysia is 85.3m (279.9feet) long, 14.44m (47.38feet) in the beam and has a draft of 3.7m (12.1feet). The ship has a gross tonnage of . She can accommodate up to 36 guests and 36 crew. The main engines are twin Caterpillar 3606s, with maximum output of 2750hp each. She has a maximum speed of and a cruising speed of . Her auxiliary diesel generators are three 500 kW Caterpillar 3412s and one Caterpillar 3406. Her propulsion system drives two variable pitch KaMeWa propellers. Her water capacity is and her fuel capacity is which provides a range of .It was on sale for 85M euro.
Renovated and renamed Moonlight II in 2012, and offered for weekly rentals of 500,000 euro.
Alysia has a large jacuzzi, two outside bars, water jets, diving equipment, fishing equipment and a small speed boat used for dives away from the yacht. The staterooms include a small cinema, large conference room and small restaurant.
The yacht was renamed Moonlight II in 2010 by her new owner, sheikh Khalifa bin Zayed Al Nahyan.[2]