This series of 5 caches are all located inside the park.
Although 1 of them could be grabbed from outside.
A range of hides used with just a couple challenging.
Hints given so ye shall find.

Normal park opening times apply. Trains and Underground to be found at Queens Park Station, close by.
More info and a map can be found at.....
http://www.cityoflondon.gov.uk/things-to-do/green-spaces/queens-park/Pages/default.aspx
Thanks to David Lindo (The Urban Birder) for his knowledge.