Overview

• More than 3,700 swimmers have signed up for the 53rd edition, surpassing previous participation figures.
• Spanish and Basque open water championships for athletes with functional diversity will compete fully alongside the main races for the first time.
• Three women-only preparatory sessions under the Gipuzkoa Provincial Council’s Emakumeok Mugimenduan programme and biweekly Prestatu GZ social-media training tests have boosted athlete readiness.
• Saturday’s programme opens with a 5,000 m Zarautz–Mollarri–Zarautz loop, while Sunday features youth 400 m and 800 m heats before the 2,850 m Getaria–Zarautz main crossing starts at 11:00.
• Safety measures, race scheduling and course management have been confirmed, with swimmers dispatched in nine staggered waves identified by coloured caps.