My wife (who is not a swimmer) and I went on this excursion. The tour guide, a young lady named Dakota, was an excellent guide. The canoeing was not too difficult with the other 4 couples. It was somewhat rainy and cool, but if you layer and wear appropriate clothing the weather won't matter. We had very good food (clam chowder, coffer, hot chocolate, etc.) and the nature walk was very informative. I highly recommend this tour.