You shouldn't be jumping into Sprague Pond anyway, but really don't jump into it now

The Boston Public Health Commission warns the pond on the Hyde Park/Dedham line off Sprague Street is now infested with a cyanobacteria algae bloom and it has shut the pond to public access - so don't jump in it, go fishing there or let your dog into the smaller of Boston's two great ponds.

After being notified of a fish kill and green murky water by a member of Boston's Department of Parks and Recreation, the Neponset River Watershed Association sampled the pond and performed a test which identified the presence of cyanobacteria.

The commission says the state Department of Public Health will now be conducting checks of the pond's water to determine when the bloom is off the pond and it's as safe as it usually is, which it isn't, really, for other reasons, to go back in the pond.