I've been getting some awesome suggestions on different Christmas and New Year's festivities on my facebook profile, but non of them are in Dulwich. Do you happen to know of any local festivities? And before I forget, I just want to mention one specific even I found in this article http://www.weekendnotes.co.uk/things-to-do-in-london-on-new-years-eve/ It's called Hogwards in the Snow. It's basically a tour of the film studio here in London where all 8 Harry Potter flicks were shot. I think your children would find it interesting, I know mine sure do.