"In the days of the Kings most High Elves that still lingered in Middle-earth dwelt with Círdan or in the seaward lands of Lindon."
—Appendix A, The Lord of the Rings
Lindon was an important Elven realm to the west of Eriador. The Elves there, originally ruled over by Gil-galad, were ruled by Cirdan the Shipwright in the Third Age. This location was known for its harbors and ships that the Elves (and the Ring-bearers) used to sail to Valinor.