This post lists what I’ve found out about parking at the Greenwich, London O2 Arena (the old Millennium Dome), and my experience of event parking there. I hope it’s useful, and please use the comments to add anything else which you know! The article was originally written at the end of 2014, but has been continually updated. More importantly, the comments thread at the bottom has taken on a life of its own and now, going into 2019, it’s just as useful as the article itself, so do read everything. If you’re short on time, read the introduction here, then scroll all the way to the bottom and start reading the most recent comments first.