It's not too late to get some kayaking in before winter arrives! You just need to sign up for a good guided tour. More info and a bit about my adventure on the Assabet River last weekend (with my 3-year-old) is here:

http://cf.telegram.com/town_portal_includes/display_full_blog_tt.cfm?TOWN=Hudson&id=770909&came_from=Hudson

Let me know if you need an tips for kayaking with toddlers!