Load the children (DS9 and DD7) in the car and drive straight to my parents' house (5 hours away, very rural, we're in Central London), hug them, and then stay with them - riding the horses, swimming in the river, having picnics, walking the dogs etc.
Go back via my sister and her husband and their farm on the coast, see my nephew who is a baby (my children miss him so much), hide in maize fields with my children, pass their lunch up to them in their tree house, have supper and toast marshmallows around the fire pit at night, go to the beach and lie in the sun and swim in the sea.
Go to church and take communion and shake hands with everyone when it is the Peace - all the services are on YouTube at the moment.
Re-arrange the various fundraising activities I had lined up for Children with Cancer UK (DS has been receiving treatment for cancer for nearly 4 years now, he finally finishes chemo in July, until then he's high risk/ sheilded etc. Which is hard for a 9 year old boy....)
Go to the theatre and the cinema in real life.
Go to the Tate Modern and the V&A, visit paintings I love and keep in my mind's eye.
Organise a giant picnic with all the children's friends and their parents, and spend all day watching our kids be so happy just to be together again.
(All this in no particular order except 1. That is definitely happening first.)