Gary B.
Google
The museum is a nice modern facility with extensive signage in 3 languages. Admission is 10,000 CFP and credit cards are accepted. They do have an audio guide for 5,000 but if you are willing to read the signs it's not needed.
The garden is worth seeing, too. At the entrance there are vendors selling the usual trinkets.
You can take the #20 bus from Papeete to get close to the museum (about a 10 minute walk). The fare is 200 CFP- the driver provides change.