Hi nannon, I am from Notting Hill, although I don't live there now, I used to go regularly, You just have to be aware of what is going on, there are muggings, pickpockets, drugs etc, I would say just stick to the main streets, don't go wandering down side streets to see what is going on, if you do get surrrounded by a big group of people and feel uncomforatable get away quick, in other words keep your wits about you, the carnival is great and most that go are at it to enjoy it, so go and enjoy it,Ray