The Lürssen Martha Ann (+49.421.6604.166, www.lurssen.com) offers a level of luxury noteworthy even among superyachts. From its ornate wall sconces to its warm, paneled woodwork, François Zuretti’s elegantly traditional interior exudes opulence. The decor’s formality also contrasts nicely with the boat’s other amenities, which include an observation lounge that converts to a cinema, a 2,650-gallon hot tub, and more than 40 televisions installed throughout the boat. At 230 feet, Martha Ann almost feels like a sprawling mansion, its spacious layout providing numerous options for entertaining and dining. For example, the boat has two indoor dining rooms (one with full-length “window walls” that open for fresh air) and a sports bar, plus an open-air bridge-deck dining space that includes a wet bar and additional cocktail tables. For less formal gatherings, Martha Ann also offers cocktail tables on the sports deck, as well as a bar with swim-up stools placed conveniently in the adjacent spa. Martha Ann is available for charter through International Yacht Collection (954.522.2323, www.iyc.com).