This Sunday, head to Parliament Hill for a heritage festival and conker championship. There are heritage events taking place from 11am, but the nut-banging competition starts at 3pm in the afternoon, with categories for adults and children, and conkers supplied. Get ahead of the pack by finding more about the game of conkers and its history here. Some players frown on treating your conker to make it hard beforehand, but if you want to be sneaky, there are some excellent preparation tips here. Sadly the World Conker Championship has been cancelled this year, but their website still has tons of information about the game, and other events that are happening. You can watch a video of a past event here.