Quote Paul2812="Paul2812"Will do Yed. I think i'm as giddy about going on ther Potter tour as I am Wembley (I'm a serious HP geek).
Any idea how long it would take to get from Elstree to the London Eye and how much the train / tube will cost ?'"
If you're using Elstree & Borehamwood national rail then i'd suggest getting off at West Hampstead NR Stn
You could get off at Hendon and catch the 83 bus, but you'll hit a fair bit off traffic, so go a couple of stations more to West Hampstead then come out of the station.
West Hampstead has 3 different stations (National Rail, Local Overground and Underground) so make sure you get the right one.
Jubilee Line straight to Wembley Park Station.
National Rail, Elstree to W.Hampstead is £7.70 pp Adult return (Pricey because it's not under TFL).
No idea on child ticket (don't have any)
West Hampstead to Wembley Park are different prices depending on cash or oyster or Day travel card
Single fare for adult will be £4.30, if you have an oyster card it will be £1.40 single or get an unlimited Travel Card (make as many tube journeys as you like for the day) £7.70
I would suggest to anyone using public transport to get an Oyster card as it will keep your costs down.
If you really want to keep your costs down Paul get an Oyster card then a 292 bus from Borehamwood to Edgware, then a 79 from Edgeware to Wembley Central total cost per adult for that would only be £4.20 per person for the whole day, as the card is capped to that price, so after you've spent £4.20 every journey in the same day doesn't cost you anything.