Regents park is not my most favourite London park- which is Hyde Park by a long shot. However I think Regents Park wins on the duck front everytime. As a full grown adult I was mesmerised by the wide variety of ducks- some with mohawks and pink beaks, others that looked like mini flaoting zebras and your average (but not to be underated) Mallard. If you were a small child you would absolutely love it. The Marylebone side of the Park is defintely my favourite (that's where the ducks are) but venture across the park towards London Zoo on a Sunday and you'll be greeted by an amazing variety of sporting activities. It was great to see a 'Sunday League' in full flow. One of the other great thing about Regents Park is that if you fancy a really long stroll there are lots of ways to extend your walk- up into Primrose Hill is probably my favourite.