The 13th and 14th of June London has it’s Open Squares Garden. More than 190 gardens in London are open to public. Normally these gardens are closed and only accessable for privat owners. Some of the most famous ones are the gardens inside Wandsworth- and Holloway prison. You have to book appointment if you would like to see these gardens. The beautiful gardens at Notting Hill are also open for visitors. You can buy a weekend ticket for just £8. Check the webpage for more information.