Activities will include a sleuth trail through the gardens with a bouncy obstacle course, camouflage nets, secret boxes and obstacle accessories.
There will also be lots of garden games including penalty shoot out, high-throw tower, giant chess and jenga, jumpy sacks and hobby horses, along with Sherlock Holmes face painting.
Admission is free for season ticket holders, £5 for adults and £2.50 for children. Family ticket for 2 adults and 2 children is £12.50. (Top up fee applies to visit the castle). There is no need to book for this event.