The summer holidays are almost here, so it’s time to start filling up that calendar with fantastic family days out. From Medieval festivals to animal encounters, code-cracking challenges and swashbuckling pirates, we’ve got all the essential dates for your summer diary… LULLINGSTONE CASTLE, near Swanley From Friday, July 19 Lullingstone Castle kicks off its summer with the Quilt and Craft Festival, a celebration of art and craftsmanship from across the South East with workshops, stalls and patchwork exhibits. Then, the PATINA Classic Car Show pulls up to the grounds in August, bringing with it…