i wrote to the City about low cost of free activities for older children /teens and got yhis reply.
Further to your email below.
We are putting in place a programme of free summer activities for children and young people over five weeks of the summer holidays. These include:
Some further activities are being negotiated and will be publicised through a leaflet distributed on the estate (and other residential areas) as soon as we finalise all the details.
We have also published a summer activities brochure which is available on our website http://fyi.cityoflondon.gov.uk/kb5/cityoflondon/fyi/site.page?id=KR...
You can also check our FYi directory on the City of London website that lists a range of on-going local groups and activities that may be of interest
I hope that’s helpful
Assistant Director – Commissioning and Partnerships
Community and Children’s Services
City of London Corporation