Tolmers Activity Centre is a Scout-run campground located in Cuffley, Hertfordshire, situated on Cuffley Brook.

The site has its roots in 1939, when 50 acres of the Tolmers Park estate south of the brook were sold to the Boy Scouts Association for use as a campsite, with Tolmers Scout Camp officially opened on 11 May 1940.

Today the centre spans over 70 acres of camping fields and caters to Scouts, Guides, schools, and other youth organisations.

Alongside open camping, the site offers three residential buildings — including Norfolk Lodge and Pembrook, both equipped with shower and kitchen facilities — making it suitable for a range of camps and residential stays.