Went up to London by train yesterday with whole family 10 of us inc. 8, 6, 5 & 3 year old and had a lovely time. All the children loved the London Eye, their favourite thing to look at was Big Ben and for my ds5 the trains! I would recommend it for a day out, theres a grass area opposite where you can sit and have a picnic. a small playground and some street entertainers a bit further down. We used the look in the big ticket office and they were lovely and clean and more importantly free!