As a renewal ceremony is not legally binding and no registered official or celebrant has to perform it you can do it anywhere in the world. If you have an idea what and how you want to do it, you can contact relevant people. For example, many hotels offer renewal ceremonies. In Samoa many of them are located at romantic sites, so they might be the right choice for you. For a start I would contact the official visitor centre in Samoa to find out. They were very helpful to me in other enquiries.
Be the first to rate this answer!