Transportation between the islands will be via Air Tahiti flights and boat tours. These flights and tours are included in some of the activities and excursions mentioned. Private shuttles and rental cars/scooters will be used for transportation on the islands. Costs for these will depend on availability and may need to be arranged in advance.
If you have a few more days, consider adding a day trip to the Vanilla Island of Taha'a. If you have less time, consider skipping Huahine or Raiatea to have more time on the other islands. However, it is recommended to spend at least two nights on each island to fully experience their beauty and culture.