As part of the rich program celebrating the Day of the City of Crikvenica, the Swimming Marathon Šilo-Crikvenica holds a prominent place as the oldest swimming marathon in the Adriatic. It is held every year on August 15, on the occasion of the feast of the Assumption of Mary, the patroness of Crikvenica. The marathon is part of a broader cultural-entertainment event known as „Crikvenica Summer Showtime“, which offers visitors a variety of activities, from cultural and musical performances to culinary events.

History and development of the marathon
The Swimming Marathon Šilo-Crikvenica has a long and impressive history. Its roots date back to 1910, when it was first organized as an international swimming race. This event symbolizes friendship and connection between the island of Krk and the mainland of Crikvenica. The first swimmer to complete the route was Vlatko Montanari, and since then, the marathon has continuously attracted swimmers from around the world. The marathon takes place on a 3,500-meter-long track from Šilo to Crikvenica, and participants swim according to the rules of the Croatian Open Water Swimming Federation. This event offers an opportunity not only for professional athletes but also for amateurs to test their abilities in a unique environment.

Registration and participation details
Applications for participation are open until August 8, and interested parties can apply via an online application form. The registration fee is 30 euros, while children under 14 and persons with disabilities pay only 10 euros. The fee includes insurance, the official marathon T-shirt, a timing chip, a certificate of participation, and a lunch package.

Race day and accompanying program
The race starts at 5:00 PM from Šilo on the island of Krk, and the finish line is at the western breakwater in Crikvenica. After the race, which officially ends at 6:30 PM, the award ceremony is held at 8:00 PM at Stjepan Radić Square. This event is enriched with a music and entertainment program featuring the popular „Infinity Band“, which further contributes to the festive and cheerful atmosphere.

Significance and contribution to the local community
The Swimming Marathon Šilo-Crikvenica is not just a sports competition; it is also a cultural event that contributes to the promotion of Crikvenica as a tourist destination. Every year, it gathers numerous tourists and competitors, further strengthening the city's tourist offer. The marathon is also an opportunity to promote a sports lifestyle and health, while bringing recognition to the local community on the map of sporting events. This long-standing event symbolizes perseverance, tradition, and sportsmanship, and is an indispensable part of Crikvenica's summer offer, providing an unforgettable experience for all participants and spectators.