I went here with my boyfriend. The climbing instructor, Jack was great, really friendly. You start by watching a information video then proceeded to the climb. Even those in wheelchair at able to climb the o2, which is great. You at advised aplenty way up, an when you get to the top you can take photos before climbing back down. I went on a twilight climb but there are big floodlights that make sure you don't miss anything. The gift shop is really reasonably priced too there you can get a large photo plus a magnet and a key ring (or two magnates /two key rings ) for jus £20. The climb its self costs £25 per person but the 90 minutes you spend on this attraction are well worth it.
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