Rent a car and drive around the Island by easyoar
Whilst it is not especially cheap to rent a car in Tahiti, it can work out quite cost effective compared to paying someone else to take you to places (hotels are so expensive you don't tend to be staying long, so everything is done in a hurry, so Le Truck is not always feasible!).You can rent cars by the day with unlimited mileage, or you can pay less if you are going to do less mileage, with a surcharge for every extra kilometre you drive. If you have a good idea that you are not going to drive too far, this can be a good idea.
This picture shows the car we rented in the grounds of the Tahiti Museum.
