Tahitigal, hi! Am I right that you got feedback on CC as well? I'm getting forgetful in my old age I think.

The 4x4 excursions on BB and M are both great. The land-and-water trip on Raiatea is interesting and educational. There's also a wonderful sailing trip offered there. It's tough to choose, 'cause you just can't do everything!

They've changed the shark and ray feeding to "ray ballet" now I think, since they've banned shark feeding on at least one island (just a guess), but anything involving stingrays is good. There's usually good coral to see on these as well.

Since you're on the 10-day you'll be going places where I haven't been, so can't give you any advice on Huahine or Rangi, although the snorkelling in the Tuomotus has deserved reputation.