If there’s one interesting as well as slightly mysterious feature of Mossvale Park, it’s the local crayfish that inhabit at least one part of the park. For many years I wondered what the muddy mounds with a large hole in the middle were, as they resembled something between an anthill and a underground dwelling spider hole. It wasn’t until I came across something similar in our front yard, that the penny dropped and I realised that these were the entrances to the homes of small crustaceans. The crayfish in our yard were very hard to spot as they only came out at night and the slightest vibration would send them quickly back into their holes. I only ever saw two such holes and one night was able to observe what the inhabitants looked like. They were all black, incredibly spiny and quite the small monsters; something that could be easily used as the basis for a creature in a science fiction horror movie.