Hello.....we (me) booked all of our excursions through Carnival EXCEPT our "Unique Tahiti Full Day Tour" through Unique Tahiti. Good reviews and you pay after the tour. I wanted to make sure we saw the entire island, including the big wave surf mecca Teahupoo...even if surf is off, be cool to have seen it. Have a relation.
BTW - Strongly recommend the app Tripit
You take all your email reservations and simply forward them to your account and it automatically indexes it for you, online and on-phone, and shows you conflicts and even keeps Covid travel stuff up to date. I use the pro version, that's me. But it will help you keep track of all the reservations and more in one place.
Basically like this
All your flights, hotel, restaurant....
Not an ad, have nothing to do with them, just a user and for this trip a lot of help