Dream of

I go to a seaside. It has an artificial wall built in front of it. You go through a door to a narrow strip of beach, the rest is an ocean that gets deep very suddenly. The waves are very high, getting bigger and bigger until finally they are as high as the wall. The waves get too high and we are smashed against the wall. We end up dashing back through the door in the wall to escape the waves even as they come over the top.