What does the ancient mariner look like?

In the poem "The Rime of the Ancient Mariner" by Samuel Taylor Coleridge, the Mariner is described as an old man with a long beard and a dark, weather-beaten face. He has a wild and unkempt appearance, with long hair and a tattered cloak. He is typically portrayed with a haunted expression in his eyes, as he is burdened with the guilt of his past actions and the curse that has been placed upon him. The Mariner's physical appearance reflects his inner state of turmoil and suffering.