In 1969 the average age of a BWCA visitor was 26. But these days young people are less likely to venture out to the nation's parks and wilderness areas. It's a trend parks officials would like to reverse.
MDH: Avoid going underwater or plug your nose when swimming to avoid amoeba
Conditions are right for a very rare brain-eating amoeba in Minnesota lakes, so officials want people to assume it's where they're swimming.