In Europe on boat tours, when it is chilly out on the water they provide blankets or jackets for free. It is a hospitality gesture worth considering. The tour guide was great - Taquila - not her real name but close.
Fantastic ride, brilliant views and chance for lovely photos. Really enjoyed getting wet too!!
Very good, informative and entertaining and it would have been lovely to get that refreshing cool rush of wind in my hair if I had any left..... Definitely recommended.