When is Brick or Treat? Our Brick or Treat event will be running each open day between 17th October - 2nd November 2019! Related articles Where can I find out information/book for your Brick or Treat Event? Does my Park ticket include entry to the Brick or Treat event? Do I get entry with my Merlin Annual Pass or Merlin Membership Pass to Brick or Treat? What dates are included in the Fireworks Spectacular? What activities have you got planned over the summer?