I have been to Napili Bay and Kapalua and both
are wonderful ! My very first trip to Maui was
back in 1983 when I was 14 and we stayed at
Napili Kai Beach Club ( i think that's the name).
Wow, that was 23 yrs ago !

If memory serves, there was little to no waves in that
little cove and my friend and I just floated on our rafts
all day ! I don't know about any drop off, someone will
have to fill you in about that !
My other favorite place on the island is Wailea !
It's way over on the other side between Kihei and Makena.