Thanks to Ellen P. for the photo from Lincoln Park’s north shore. If you’ve never seen, nor heard about, that before, it’s a startling sight – orange-red water along the beach. But it’s not a spill. Just about every year in mid-to-late spring, an algae bloom called noctiluca shows up. Pending official verification (we have a inquiry out), that’s almost certainly what this is. The state Ecology Department says it’s not toxic but it can be irritating, so don’t go wading in it! (This is a bit earlier than our first mentions in many previous years – last year, it was late May.)