What does Gawain hear as he arrives at the green chapel?

As Gawain arrives at the Green Chapel, he hears a sound that resembles the ringing of a bell, which is actually the noise of a woodcutter sharpening his axe. This sound evokes a sense of foreboding in Gawain, as he realizes he is close to his fateful meeting with the Green Knight. The eerie atmosphere heightens his anxiety about the impending challenge he must face.