We have an upcoming trip to Bora Bora and have 2 extra days in Tahiti beforehand. Given that there will be very little cultural stuff to do in Bora Bora, we thought that we would stay in Tahiti and wander around the historical stuff, but looking online it looks like most of the hotels are fairly old and everyone absolutely loves their time in Mo'orea.

Is there enough interesting non-nature stuff to do on Tahiti for 2 days or are we better off enjoying the ocean and mountains on Mo'orea? All advice appreciated!