Here he is in his kayak/sailboat
From his first book, "Under Sail Through Red Devon:"

From the same book, here he is with his shipmates Popsy, Reginald, and Jean:

Here are a few photos of him throughout his life in more or less chronological order:

Above, left to right:  Mary, Devon, Karen, Heather on Herry, Rick on Raymond

 
Above and below, Raymond and Devon Cattell