Never really found any need for the floats on our PG trip. Not worth dragging them along, in my opinion. Be sure to do the waverunner trip in Bora Bora if it's a reasonably calm day; same in Moorea. The day in Tahaa on the motu is really fun as well. If it's calm they'll have waterskiing, as well as the kayaks and snorkeling. If you're at all interested in scuba the PG is a great place to certify or get recurrent. Have a great time, Phil!