In WW1 why didn’t the English sail behind the front and land men to charge the Germans from the other side?

by KaladinShardblade

I heard that the Germans built their lines to face in one direction. So why didn’t the English, using its powerful navy, sail round behind them and land men to take the front?

thefourthmaninaboat

While more can be said, I've previously discussed British plans for amphibious assaults during WWI in the following threads:

I was listening to the podcast on the Battle of Jutland, and "..Land a million Russians north of Berlin, and boom..The War's over in a few weeks" caught my ear.
Why didn't the triple entente stage a naval invasion behind the western front in WW1?
Had the North Sea theatre been secured by the British, could the Entente have landed in Northern Germany in WW1?
Was landing soldiers behind enemy trench lines ever considered by either side on the Western Front during WWI?