Head south from Lahaina, look for Ukuhuname park. Park in the area about half a mile from the tunnel.
Overview
Atmosphere
It's about the only place on West Maui in the summer that: a) isn't overrun by locals with attitude. b) gets a nice rideable wave in July
c) is a mellow place. Great view of Haleakala.
General
Who wouldn't like a nice, tasty wave? In Maui in the summer, nahgonnahappin. But this place got some fun 2 to 3 footers.