Enough time to get done what I wanted. 2 1/2 days is good. Its just so darn expensive there. London is expensive also. You can do alot in a couple days. The Metro is great allowing you to get to places in a timely manner. Just be sure to by a 3 day pass. It will save you. If you have any questions I will be more than happy to help. Just shoot me an email. Take care