Sunset Peak, Mountain summit in Lantau Island, Hong Kong.

Sunset Peak is a mountain summit on Lantau Island that rises to approximately 870 meters and is characterized by open grassland slopes. The slopes offer sweeping views across neighboring ridges and the ocean, with golden vegetation defining the soft contours of the terrain.

The name Tai Tung Shan, "Big East Mountain", comes from the Cantonese words for an uneven ridge, describing the Tai Tung and Yi Tung Shan range. Europeans called it Sunset Peak because the sunset over the Lantau area was visible from western Hong Kong Island after they took the territory. Since November 2014, TVB and other media promotion of the autumn silvergrass has made it a crowded hiking spot, with litter and fires reported.

The Cantonese name Tai Tung Shan means "Big East Mountain", from 崠/峒, referring to an uneven ridge line. Europeans called it Sunset Peak because the sunset over the Lantau area was said to be visible from western Hong Kong Island. Since November 2014, TVB and other media coverage of the autumn silvergrass has made it a crowded hiking spot, with litter and fires reported.

The main starting point is Pak Kung Au, where marked paths lead through forested sections before reaching open grassland terrain. The landscape becomes increasingly exposed at higher elevations, so visitors should prepare for changing weather conditions.

The stone huts of the "Lan Tau Camp" (爛頭營) near the summit were built for expatriate missionaries in the early 20th century; their water tanks have become a litter black spot as visitor numbers rose after 2014, when TVB and other media promoted the autumn silvergrass. Two wildfires on 5 and 12 December 2021 burned close to the hiking trail.