River Thames Society

Welcome to The River Thames Society

Members of The River Thames Society are dedicated to protecting and preserving the natural beauty of the River Thames.


The Thames is one of the World's most fascinating and beautiful rivers. From source to sea, its 215 miles flow from springs in Gloucestershire through rural and developed areas to London and on to the imposing tidal estuary into the North Sea.


If you are inspired by the Society's aims and achievements and would like to help us to protect and promote the Thames, please become a River Thames Society member and join us as we continue our quest to preserve and develop the River Thames.

Important Navigational Information (last updated on Sunday June 20th)

Tidal Thames (Port of London Authority)
- No vessel may pass under Hammersmith Bridge until further notice.
However, arrangements may be made for a Pre-Approved Controlled Transit. Online booking is required at least 72 hours in advance.  On May 19th, PLA announced the installation of bridge control lights

Non-Tidal Thames (Environment Agency)

- For the latest information on river and lock status, please check the information page from the Environment Agency.
-Boaters should follow the rules in Step 3 of this Government communication.

- Current and future restrictions and closures  (list updated on June 18th).

- Passage through Cookham Lock will be restricted from Tuesday June 22nd to Thursday June 24th. Details in this Harbour Masters Notice


Almost every day, there is news about the River Thames. Here are some recent headlines.
There are more items on our News page.

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June 10th 2021

Government approval for a flood alleviation scheme in Surrey.

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June 15th 2021

New edition of Tidal Thames News published by Port of London Authority.

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June 11th 2021

Return of Mayflower 400 years ago celebrated on River Thames

Explore The River Thames

River Thames Society Members have contributed descriptions and pictures of the River Thames from source to sea.

Click on a picture below to read more about a section of the River Thames.






Length in miles


Fish species