Ottawa River & Potomac River Twinning Ceremony created 23 watermarks.
Atlantic Ocean, Ghana
Tekai Akuetteh
Great Bear Lake, NT
Noel Alfonso
Hudson Bay, QC
Gary Lacey
Lake Sunapee, USA
Colin Bellavance
Madawaska River, ON
Mauricio Magosso
North Saskatchewan River, AB
John Geiger
Ottawa River, ON
Al Donaldson
Ottawa River, ON
Alain Jegen
Ottawa River, ON
Brett Painter
Ottawa River, ON
Brigitte Boudreau
Ottawa River, ON
Chloe Hillier
Ottawa River, ON
Chris Cobb
Ottawa River, ON
Chris Sheppard
Ottawa River, ON
Dot Bonnenfant
Ottawa River, ON
Jim Coffey
Ottawa River, ON
Kornelia Eisfeld
Ottawa River, ON
Lawrence Gunther
Ottawa River, ON
Margot Sunter
Ottawa River, ON
Max Finkelstein
Ottawa River, ON
Patricia Barr
Ottawa River, QC
Paul Couvrette
Rideau Canal, ON
David Chernushenko
St. Lawrence River, QC
Jean Perras