Sat 26 May 18 Ham House and Garden, Ham Street, Ham, Richmond-upon-Thames TW10 7RS Outdoor activities and children's trail as part of the 50 things to do before you're 11 . Pick up a nature-themed trail at Visitor Reception and go on a hunt for animal tracks or create some wild art. Why not join us for a pick it, eat it, grow it workshop or play some outdoor games...