The Preko - Zadar marathon in long-distance swimming is held in the Zadar channel between Preko and Zadar. The start is on the waterfront in Preko, and the finish is at the Kolovare swimming pool in Zadar. The course is 4,600m long and the swim is towards Zadar along a marked route.

There are 8 yellow buoys on the course. The FINISH zone starts between two orange buoys, after which you enter the funnel. The race ends when you touch the FINISH sign.

Registration of starting numbers will take place on 05.08.2025 (Tuesday) from 7:30 to 8:45 a.m. on the waterfront in Preko.

Competition start: 9:00 a.m.

Time limit: 2:00 a.m. from the start (competitors who finish the competition within this time limit enter the official competition)