The park is huge and only one corner (Hyde Park Corner) of it is anyway close to Buckingham Palace. I think the review below is mixing it up with Green Park or St James Park which are next to Buckingham Palace.
It is nice for a walk and an escape from the city and could be compared with Central Park in NY in this way.
ATM its a shame its becoming more (In)famous for the Hyde Park London Romanian gypsy site, which is a disgrace and ruining a part of the park for some visitors. Keep away from the Marble Arch part !!.
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