Fastest two-way crossing of the North Channel swimming in relay
Who
Petr Šlajs, Zuzka Procazkova, Pavlina Prochazkova, Zdenek Slama, Jakub Valnicek, Rory Fitzgerald
What
22:49:45 hour(s):minute(s):second(s)
Where
United Kingdom ()
When

Team "CZECH IT", comprising Petr Šlajs, Zuzka Procazkova, Pavlina Prochazkova, Zdenek Slama, Jakub Valnicek (all Czech Republic) and Rory Fitzgerald (UK), swam across the North Channel from Northern Ireland to Scotland and back to Northern Ireland, UK, in 22 hours 49 minutes 45 seconds on 23 June 2018, as verified by the Irish Long Distance Swimming Association (ILDSA). They were piloted by Charles Stewart and Pádraig Mallon of Infinity Channel Swimming LTD aboard the vessel Hirta.

As per ILDSA rules, the route must follow the Admiralty Chart 2198, Southern Part which measures 18.6 nautical miles (35 kilometres; 21.5 miles).