[Maerbenn]

Legolas wrote:

Those elves were on their way to the Grey Havens.

From The Road Goes Ever On:

No doubt Gildor and his companions (Vol. I., Chap. 3), since they appear to have been going eastward, were Elves living in or near Rivendell returning from the palantír of the Tower Hills. On such visits they were sometimes rewarded by a vision, clear but remote, of Elbereth, as a majestic figure, shining white, standing upon the mountain Oiolosse (S. Uilos).