anybody ever been to tahiti?

we are going on our honeymoon on a cruise to 6 six of the polynesian islands. we dont really like any of the excursions, we just want to lie on the beach all day. can anyone recommend any good beaches for the following places :

papeete, huahine, roratonga, raitea, bora
bora, and morea

also, do you know if the resorts allow people to spend the day there with out a fee?