Hong Kong Geopark
Sai Kung is the gateway to the city’s UNESCO-certified Geopark. Fascinating landscapes are just a boat ride away: Take a trip out to the Ninepin Islands to see their stunning hexagonal rock columns. Sai Kung Pier. 4-hour boat tours from $1,800 for 6-7 people, Sai Kung Yacht Association, 9167-4941.