"With a bucket and a spade. Show us what you have made. A fabulous sand castle fit for a king?
Send us pics and you could win. Get voted 'the best' by the crowd. A My Gym prize will make mummy proud!"
To win this competition (a surprise from My Gym), take your kids to the beach, build a beautiful sand castle, upload the photo on "Kids Fitness Made Fun facebook page", vote for your favorite, and get your friends to vote as well.