Task-oriented dialogue about: attraction

Please help me find general information about park type places to go in Cambridge.
There are five total parks in Cambridge, four of which are free. The University Botanic Gardens cost 4 pounds to enter.
May I please have the phone number, postcode, and area of a free park that you recommend?
I have cherry hinton water play,located in the east and the post code is cb18dw. Here is the phone 01223446100.
Thank you for your help.
Have a nice day!