Park toured widely on the international ballet circuit with the Royal Ballet, often dancing with such dynamic partners as Nureyev, Anthony Dowell, and Mikhail Baryshnikov. In 1970, she toured the major cities of Rhodesia, her home country, with Royal Ballet principal dancer Petrus Bosman, a native South African, as her partner. Capping her multifaceted career was the role of the Countess Marie Larish in MacMillan's "Mayerling" (1978), which depicts the final years of Crown Prince Rudolf of Austria-Hungary. As a lady in waiting to Empress Elizabeth and a former mistress of the prince, played by David Wall, she scored a theatrical triumph. Of all the ballets in which Park appeared in her later years, however, none suited her joyous style of dancing better than "Voices of Spring" (1983), a "pas de deux" created by Ashton for a New Year's gala performance of "Die Fledermaus" at the Royal Opera House. Upon entering the party scene, carried aloft by Wayne Eagling, smiling and strewing flower petals, she and he danced Ashton's buoyant choreography to Johann Strauss's famous waltz with great élan and verve, creating an indelible impression of happiness and grace.