The first stage of your journey south with Corudan and Nona involves a brief stop in Thinglad to collect Corudan's bow.
'I am grateful for the healing arts of Galadriel and her people, and for the lady's willingness for me to see her city. But there is something strange about this place, and I must tell you the truth: it is no place for me. I want my feet upon the ground and my foes in front of me. This land of Elves is a long way from Enedwaith, a long way from my people.
'I am ready to depart, ${PLAYER}. Perhaps things will feel more familiar to me as we journey south along the river.'
You will automatically travel to Haldirith in the Great River when you accept this quest.
Corudan is in Thinglad, in the Great River.
You have come to Thinglad with Nona and Corudan, and should speak to Corudan, who wanted to recover the bow he lent to Fimloth.
Orcs can be found throughout Thinglad, alongside the Great River. Defeat them while Corudan and Nona do the same, and perhaps you will find Corudan's lost bow.
Corudan is at Haldirith, in Thinglad.
You have searched for the Orc that took Corudan's bow, but did not find it.
Nona is in Haldirith, in Thinglad.
You should speak to Nona about her experience hunting with Corudan.