Hi there. If you are a first timer in Hawaii, the very best way is to connect to web. First thing to do is to know you location. Second search on the web the nearest shopping center in you location. Third is find a vehicle for you able to go there. You can find it also through web.
The other options is you can go to the help desk there so they will guide. Always turn on you GPS to track your exact location. But i prefer you to go to Honolulu it is near to Maui. Maui to Honolulu is only 23 minutes.
Hope my simple answer can help your problem. Enjoy shopping and have a nice trip. For more answers you may try to visit here.