When can I visit Chessington World of Adventures Theme Park and Zoo? Sheryl Hill October 16, 2020 09:27 Updated Follow The zoo and theme park at Chessington World of Adventures is open for guests to visit now. All guests need to prebook their tickets. Opening times and days vary. Related articles I still have my tickets for the In the Night Garden Live performance that was postponed in 2020 because of coronavirus. What can I do to sort this out? Comments 0 comments Article is closed for comments.