§ Of Beleriand and Its Realms The Silmarillion

But the realm of Nargothrond extended also west of Narog to the River Nenning, that reached the sea at Eglarest; and Finrod became the overlord of all the Elves of Beleriand between Sirion and the sea, save only in the Falas. There dwelt those of the Sindar who still loved ships, and Círdan the shipbuilder was their lord; but between Círdan and Finrod there was friendship and alliance, and with the aid of the Noldor the havens of Brithombar and Eglarest were built anew. Behind their great walls they became fair towns and harbours with quays and piers of stone. Upon the cape west of Eglarest Finrod raised the tower of Barad Nimras to watch the western sea, though needlessly, as it proved; for at no time ever did Morgoth essay to build ships or to make war by sea. Water all his servants shunned, and to the sea none would willingly go nigh, save in dire need. With the aid of the Elves of the Havens some of the folk of Nargothrond built new ships, and they went forth and explored the great Isle of Balar, thinking there to prepare a last refuge, if evil came; but it was not their fate that they should ever dwell there.