Garbage and general disrespect of nature bugs me too. I don't think it's just large groups though. Part or it is the sense of entitlement as well as the proliferation of outdoor equipment sales an internet promotion of outdoor activities to the masses. It not just kayaking either. I noticed it starting with the proliferation of suv in the 90s and quads, seadoos, kayaks etc. The fringe outdoor users not enthusiasts. Like the frat parties or stag parties of that rent equipment but have otherwise never been out of the city. I remember one time I camped at Widgeon creek with one of my daughters. There was a stag group there with food, watermelons, clothes, alcohol bottles, etc scattered around and playing music late. I was surprised but grateful that a ranger showed up in the morning and after doing his rounds and, when I made the point of talking to him, he wrote them all, I hope, big tickets.