Blood! It's blood, I tell you...

Aldeburgh is, as any fan of the traditional ghost story knows, the place where M.R. James set 'A Warning to the Curious'. Well, you'll be pleased to hear that a genuinely eerie phenomenon has occurred there - a public pool has turned blood red. Not, though, because of some ancient curse - it seems they used a cleaning product that goes red in sunlight before dispersing. Well, that's the official story. But it still looks pretty weird.