The Breaker from Pui O to Nam Shan

This classic South Lantau wall starts near ten metres above sea level in Pui O and follows paved South Lantau Road east to Nam Shan, or Pui O Au, finishing near 151 metres. The verified canonical Strava mother segment measures 1.86 kilometres. Its 97-point high-resolution stream reconstructs to about 141 metres of climbing, no descent, an average near 7.6 percent and a maximum 100–150 metre window near 20.6 percent. Strava’s API reported 183.2 metres of gain, which conflicts with its own 7.9-percent average, so the mother card was corrected from the clean stream. The first 800 metres are gentler; the final 850 metres steepen markedly and match the official description of the core Nam Shan–Pui O ramp. Dry-run and formal exploration rejected every nearby segment as off-line or reversed, so the complete mother segment remains intact with no gap. South Lantau Road carries buses, taxis and local vehicles, and cattle may enter the carriageway: keep left in single file, slow before blind bends and obey every temporary closure or sign.