Melissa, everyone has their favorite excursions for this itinerary! I think my very favorite was the wave runner excursion in Bora Bora, followed by the 4x4 on the same island the next day. Very bumpy ride, but you look young and ready! Great views. In the afternoons, we would go to the motu on BB. On Moorea, I would say the Aito ATV excursion comes closest to describing (on cc) the one I took pre-cruise that had the waterfall hike, but no such hike on this one. Over the years, I have heard comments both good and bad on the ancients hike. It is long, and involves no "cooling" off in water. My twenty somethings did some sort of excursion on Moorea that involved feeding sharks and rays and snorkeling that they really loved. Highlight of what the ship offers is the moto day at taha'a.
Something I just saw in Bermuda this fall is the "noodle" floats. Seems like they could fit in a big suitcase without too much trouble, and they are run. Best of all, no blowing them up like a float.
Your avatar picture looks great!