From CBC PEI:

A brother and sister team from P.E.I. are taking part in the Big Swim this weekend — a 14-kilometre swim across the Northumberland Strait from Cape Jourimain, N.B., to Borden-Carlton, P.E.I.

Lauren Hardy — who is formerly of New Haven now but lives in Shelburne, N.S. — will be one of 62 swimmers attempting to cross the Strait on Sunday while her brother Devin kayaks alongside her.

...The swim is expected to take over three hours depending on the swimmer.

It's organized by the volunteer organization GivetoLive. Money raised from the event will go to Brigadoon Village, a camp in Nova Scotia for children, youth and families living with chronic illness or special needs.

For more see P.E.I. siblings set to take part in Sunday's Big Swim 

Check out this video from last year: