Yes I saw that earlier - I'm surprised no vehicles disappeared down there. I believe someone reported a 'pothole' to the Council a while back and they spread a bucket full of tar on it - you could hide a bus in this pothole!
Florida has a lot going for it but they aren't keen on advertising 'swallow holes'. The estate agent described this bungalow as benefitting from a 'sunken garden'!!
sinkholes in florida pictures
By the way let me know when you fancy a Trafford Centre meet up for a light bite and boot hoist demo.