Good for you for trying something new. My mom is 72 and just started SUPping last year. She loves it. SUP is a GREAT activity for developing strength and balance.
Yes to the seat question. I have seen coolers used as seats on sups rigged for fishing. Shouldn't be much of a problem to figure out how to attach something to the board.
First Need Purifier
Touring Kayak Paddles
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