We went on the 7 day PG cruise several years ago. We loved the ray feeding and you get to snorkle an amazing coral garden afterward. I parasailed for the first time ever over Moorea, which was a lot of fun. You hear nothing but the Tahitian wildlife up there (chickens!). We took the walk of the ancients excursion on Moorea and really enjoyed it, but we are history buffs - not sure it would appeal to everyone. If you do this excursion, wear good shoes. It is all downhill, but still through the jungle. I heard very good things about the whales/dolphins excursion with Prof. Poole.

We rented cars on Bora Bora and Moorea. Bora Bora is mostly a big circle, so I wouldn't bother. Moorea was a lot more interesting. I had read online about a waterfall there and we drove around until we found it. If you decide to do this sort of insane thing, rent a 4X4. We were pretty much hanging off the side of the mountain at one point. We also ate at a local restaurant off the beaten path that was reccomended by the ancients tour guy. Very interesting. It was a fun island to explore on our own. We also rented a car on Tahiti, which was a good choice. We got to see a lot of the sites they cover on the tours without being on a bus with other people. It was our honeymoon, so exploring on our own was preferable.

Hope this helps! You're gonna LOVE FP and the PG.