The UK features a diverse network of rivers, lakes, and extensive coastlines.
* **Rivers**: The River Thames is the most famous, flowing through London, while the River Severn is the longest. Other major rivers include the Trent, the Mersey, and the Clyde. * **Lakes & Lochs**: The Lake District in England is famous for Windermere, the country's largest natural lake. In Scotland, Loch Ness and Loch Lomond are internationally renowned. Northern Ireland is home to Lough Neagh, the largest freshwater lake in the UK by area. * **Canals**: An extensive historic canal network, originally built during the Industrial Revolution (such as the Grand Union Canal), is now widely used for leisure boating and recreation. * **Coastlines**: The UK's varied coastline includes the white cliffs of Dover, the fossil-rich Jurassic Coast in Dorset, and the rugged beaches of the Outer Hebrides.