Haldir

Haldir was an Elf of Lothlórien, probably a Silvan Elf, and a marchwarden who guarded the forest's northern borders. When the Fellowship of the Ring arrived in Lórien, he became their guide to Caras Galadhon. He and his companions are described as wearing grey hooded cloaks and residing on platforms (flets as they are called in Lórien) in the trees.