Pier 121 Marina is the crown jewel of Lewisville Lake. A sprawling state of the art marina with crisp art deco appointments, this is truly a boater’s paradise. Pier 121 Marina is located on the south side of Lewisville Lake with quick access to North Dallas, Plano, Frisco, The Colony and surrounding areas from Highway 121. Once you enter the gates at Pier 121 Marina, you will feel that immediate sense of relaxation take over as you leave that workday behind.