I love writing those moments. They're my payoff for all my hard work at layering in exposition, foreshadowing, dialogue bits, suspicions and lies and truth. They're where I deliver my character over to everything he's wrought or wanted and he's facing the result.
I just wrote a turning point for a character standing atop cliffs like these, and the giant tentacled things he sees trying to climb out of the sea make him scream like a baby. Well, okay, maybe he doesn't scream--but he will later. Oh yes, he will.