With the 2020 theme park season delayed due to Cornavrius, Chessington World of Adventures have announced that they will be extending the main theme park season into the end of November.
Previously the season would have ended November 1st and Zoo Days would have started on the weekends. However, the theme park and zoo will remain open on selected dates until 29th November 2020.
All rides and attractions will remain open, except for Tiger Rock and River Rafts which will close 2nd November. Probably due to the weather and it not being warm enough!?
Full list of opening dates here - https://www.chessington.com/plan-your-visit/before-you-visit/opening-hours/
Winter's Tail will run into the end of the 2020 season, starting on 21st November and running till 3rd January. "Meet Father Christmas, enjoy our festive live show and selected rides. From 21st November - 3rd January."