So many bikes litter the lake that the Fire Department, the rideshare company and a group of volunteers dubbed the Divvy Fishers Society can barely keep up.
Good article, and good people volunteering to help mitigate the problem. The use of the fire department dive team is also pretty neat, but Rischke is right, Divvy should do something more: a more robust GPS device and a full time magnetic recovery boat might be worth looking into.
Are the bikes just left parked around the city? Here in Montréal, we have Bixi, with docks for the bikes every few blocks, and bikes have to be returned to a dock when you're done (or you'll get docked for the price of the bike, pun intended) so we don't hear about discarded bikes much.