My DC will be 19 and 16.6 by Christmas (DS is a complete and utter Christmas Grump , he'll accept that I do Christmas Overboard and eat a huge dinner but never wants 'presents' - we give him money , he saves) .
He gets the Hamper with PJs etc and is made to wear them.
DD is a complete Christmas-a-holic.
DH goes along for a quiet life.
DD and I go shopping usually in London on the 23rd and Lakeside/Bluewater in December.
I think this year I'll book a London Tour Bus trip, the open topped ones. See the lights, wrap up warm .
We went to Kew Gardens a few years ago when it first opened , hopefully its got bigger and better.
There's WinterWonderland in Hyde Park but its really busy .
Tea at The Ritz or Savoy ?
We did a London Duck Tour one year - great fun but freezing , not sure if they're still running , there's something on the website for Dec 2018 but its 'On Hold'
Any theatre shows you fancy? Swan Lake, Little Match Girl, Nutcracker
The cinema never seems to have proper festive films , when Nativity came out it was in the November that year. 