by the North Sea and the English Channel.
The western
coast of Great Britain is washed by the Atlantic Ocean and the Irish Sea.In Great Britain you can find mountains, plains and valleys. Ben Nevis in Scotland is the highest mountain, but only 1343 meters high.
There are a lot of rivers in Great Britain, but they are not very long. The Severn is the longest river, while the Thames is the deepest and the most important one.