Emerald Cruises is redefining luxury river and yacht cruising

The argument over whether the ocean’s hue leans closer to emerald or sapphire has simmered at sea for centuries. From cutlass-wielding pirates at each other’s throats to rowdy merchant sailors fresh from shore leave, the color conundrum has confounded all manner of seafarers and is still without a definitive answer.

The truth depends on many things, but Emerald Cruises’ twin ocean cruising luxury superyachts are content to have it both ways. Whether deep green or azure blue, the…