Hen ‧ ley Re ‧ gat ‧ ta, the /ˌhenli rɪˈɡætə/ BrE AmE ( also Henley )
a series of boat races for ↑ rowing boat s , held every year on the River Thames near the town of Henley in the south of England. Henley is also a fashionable social event, especially for rich and ↑ upper-class people.