Check out this drone video of one of Hong Kong's last surviving lighthouses, compliments of caldina3188. It sits on Waglan Island, an islet which is part of the Po Toi archipelago, a group of about 200 small islands southeast of Hong Kong Island. The lighthouse was built in 1893 to protect shipping lanes in and out of Hong Kong Harbor from the southeast. It's one of about 115 scheduled monuments in the Hong Kong Territory. Automated since 1989, it's one of five operating Hong Kong lighthouses.