Places that are Free: Aldenham Country Park, Elstree, Herts Battersea Park Adventure playground and Childrens Zoo Brooks Farm city farm, Leyton, London E10 Coram's Fields Playground & Park, London WC1 Diana Memorial Fountain, Hyde Park Diana Memorial Playground, Kensington Gardens Deen City Farm & Riding School, London SW19 Freightliners City Farm, London N7 Hackney City Farm, London E2 Hainault Forest Playground and Childrens Zoo, Chigwell, Essex Horniman Museum, Forest Hill, London SE23 Kentish Town City Farm, London NW5 London Transport Museum, Covent Garden, London WC2 (Free for children) Mudchute Park and Farm, Isle of Dogs, London E14 Museum of Childhood, Bethnal Green, London E2 Museum of Docklands, West India Quay, London E14 (Free for children) Museum of London, London Wall, London EC2 Newham City Farm, Becton, London E6 Rye Meads , RSPB Reserve, Hoddesden, Herts Science Museum, South Kensington, London SW7 Spitalfields City Farm, London E1 Surrey Docks City Farm, London SE16 Thames Barrier Park, London E16 Thames Chase Forest Essex Vauxhall City Farm, London SE11 Woodlands Farm city farm, Welling, KentThings you have to Pay for: Adventure Island, Southend-on-Sea, Essex Animal Adventure, Children's zoo at London Zoo Barleylands, Billericay, Essex Beale Park, Berkshire Bekonscot Model Village and Railway, Beaconsfield, Bucks Bewilderwood, Wroxham, Norfolk Colchester Zoo, Essex Discover children's story making centreStratford, E15 Drusillas Park, Alfriston, E.Sussex Harbour Park, Littlehampton, W.Sussex Hop Farm Family Park, Paddock Wood, Kent Knebworth House Adventure Playground, Stevenage, Herts Lee Valley Ice Skating Centre, Lea Bridge Road, London E10 Lee Valley Park Farm, Waltham Abbey, Essex Lee Valley Riding Centre, Lea Bridge Road, London E10 London Wetland Centre, Barnes Old MacDonald's Farm, Brentwood, Essex Paradise Wildlife Park, Broxbourne, Herts Rainham Marshes , RSPB Reserve, Rainham, Essex Romney, Hythe & Dymchurch Railway, New Romney, Kent Sea-Life Adventure, Southend-on-Sea, Essex