Queensway which hosts London's only skate and bowling arena (apparently)!
I must say I was really surprised; the rink was a decent size, the boots were supportive, the price was reasonable (£12.50 including skate hire but they do a discount on a Monday so including skate hire it is £8.50) and it was not overcrowded.
I am not the worlds most proficient skater but I had a great time. I was on the ice for two hours (approximately), managed not to fall over once (a small miracle), barely held onto the edge and... according to myfitnesspal burned about 500 calories (though I am not sure I believe this!!). I have however developed a number of suspicious bruises on my arm since this but that is a small price for such a fun, exercised-filled afternoon.
You wont be surprised to hear it was nothing like the image on the side... I just thought that was cool as, like many twentysomething women, I love a good bit of vintage!
So... if you're stuck for something to do this weekend.... get yourself along to Queensway!