Manu Bay
In the left hand image, you can seen the left-hand break of the waves.  In the centre image, looking back into the bay, roughly towards where the leftmost image was taken.  In the right image, the row of surfer-cars shows how popular the beach was that day.  From what I garnered, if Manu bay was not good on a given day, then Ngarunui was the beach to surf, and vice versa.
 
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Here's the Wannasurf page on Manu Bay.
 
Raglan Surf Page