The TMBA have published a summary of the results of the Thames Motor Boaters Survey conducted during October/November this year.
This survey was open to all motorboaters based on or visiting the Environment Agency managed non-tidal Thames during 2021. The TMBA was supported by river user organisations and other interested parties, particularly the Association of Thames Yacht Clubs (ATYC), DBA-The Barge Association (DBA), the Inland Waterways Association (IWA), the National Association of Boat Owners (NABO), and the Residential Boat Owners Association (RBOA).
The document can be downloaded here