[TrueBlue]

A bit off the topic of boat nets, but there are several very long strings of bottom anchored fish nets, located about 5 miles offshore of RI's Atlantic coastline. They've been there for years and are a huge navigational nuisance to recreational sailors.

There's one that must be about 500 yards long, midway and perpendicular between two buoy waypoints used in a popular course between Newport and Martha's Vineyard. They are suspended from floating aluminum beer kegs, which disappear on a grey day.

Hundreds of unsuspecting boaters have gotten hung up on these nets. Most though, when repeating the route a second time, know from experience to cruise far south of their plotted course.