Waiau could refer to several places in New Zealand:
==Settlements== Waiau Pa, south of Auckland Waiau, Waikato, on the Coromandel Peninsula Waiau, Bay of Plenty, between Waihi and Waihi Beach Waiau, Taranaki Waiau, Canterbury Franz Josef / Waiau, on the West Coast near Franz Josef Glacier
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).