Hong Kong's smallest inhabited island, a sliver of rust-red breccia in the UNESCO Global Geopark whose Duck's Eye sea arch is the only one in the city you can stand right next to.

The old village school is now the Ap Chau Story Room telling the island's Hakka fisherfolk story; a weekend kaito leaves Ma Liu Shui at 9am (about HK$90 round trip), usually paired with Kat O.