HKHikerhang
This path exists. Just opposite to 恆益商店. See Google map (https://www.google.com.hk/maps/@22.3556197,114.1994334,2a,75y,280.34h,82.7t/data=!3m6!1e1!3m4!1sPjyNX4z4HogV6Ko-e5y2dg!2e0!7i13312!8i6656?hl=zh-TW)