On the 9th of September 2023, the 38th Mini Swimming Marathon Koper 2023 will take place in the Koper bay organized by the Koper Swimming Club.The marathon will run from the Koper City Beach to the Žusterna Beach and will cover a distance of 1,100 m. Registration will take place from 8.30 am and the start will be at 10.00 am at the Koper City Beach.

All swimming enthusiasts from children to veterans who are able to swim the distance of 1,100 m are welcome. The best in each category will receive medals, and the overall winner among women and men will receive a trophy and a cash prize.

The 38th Mini Swimming Marathon Koper 2023 is co-financed by the Municipality of Koper.