The Bieg 3 Króli - Grand Prix Trójmiasta is a 6 km beach race in Gdańsk, featuring cross-country running and Nordic walking. It begins the Grand Prix Trójmiasta series, with both disciplines following a two-loop course on sand. The race office is located near the Gdańsk Brzeźno pier entrance for deposits and team registration.
The entire course is on the beach, marked for runners and walkers, with distance measured along the shortest passable line. Results are categorized into open standings and age groups for women and men aged 16 and older. Three-person team classifications exist for both running and Nordic walking, requiring at least one woman per team. Registration is electronic, the start package includes timing, and entry fees depend on the payment date.