The Clyde, the Severn and the Avon are but three of the rivers in the UK.
The river Thames is the largest river in the UK.
There is no 'river UK' !
As far as I am aware, there is no river Drake in the UK.
The main river in the UK is the River Thames. It is the longest river entirely within England, and it flows through the capital and most populated city in the UK, London.
The River Severn The River Severn
The River Severn (220 miles / 354km) in Wales, UK.
River Clyde. The River Churnet
river severn
Because it flows through Oxford and London and is the second longest river in the UK
The River Thames is the best known river.
London, the capital city of the United Kingdom, is on the River Thames.
The River Thames in the UK is not in Australia.