Last year, Parks Canada announced that Zebra Mussels had been detected in Clear Lake, in Riding Mountain National Park. A decision hasn't been made about the future of boating on Clear Lake yet, but Parks Canada says a decision will be coming! Details can be found here: https://winnipeg.ctvnews.ca/zebra-mussels-may-prompt-closure-of-national-park-lake-manitoba-government-says-1.6840370