24 Hour Open Water Relay 2018 created 11 watermarks.
Atlantic Ocean, USA
Louise Hyder-Darlington
Lake Ontario, ON
Gabrielle Fredette
Lake Ontario, ON
Janice Barker
Lake Ontario, ON
Kate Hulford
Lake Ontario, ON
Katharine Borczak
Lake Ontario, ON
Marilyn Korzekwa
Lake Ontario, ON
Mitsy Layton
Lake Ontario, ON
Steve Hulford
Lake Wallenpaupack, USA
Hugh Darlington
North Channel, UK
Caroline Block
Pacific Ocean, USA
Geoff Farrow