First, @wtlloyd has a helpful idea with the Hawaii forum, but you may not receive a positive response quickly. It's worth a post, though.Weekend off topic: Please excuse the off topic question.
Going to Maui in a few weeks and looking at rental cars, Model 3's are widely available but I don't know what kind of charging infrastructure to expect. Not many Tesla superchargers so I'm obviously going to be relying on other charging methods. Anyone had any experience? At this point, I'm considering just get a conventional gas vehicle for convenience sake .... yuck!
Thanks, in advance!
Go TSLA
In the meantime, check out Tesla's destination charging resource. If you're staying at the Ritz-Carlton in Kapalua or in one of the 3 Wailea hotels shown, you're in luck.
Another source is this plugshare map which shows fast and slow chargers on the island. The problem with fast chargers is that they require either Chademo or CCS adapters. It may be worthwhile to contact your rental company on Maui and see if they include (or rent for a fee) such adapters with the cars.
Tesla says a supercharger is coming in Q4 of this year.
My overall feeling is that this situation is an excellent example of why Tesla drivers are going to benefit from Tesla's NACS plug becoming THE most available charging plug in the near future. People will be able to rent a Tesla and plug it in at most any high-speed charger in the U.S. and the rest of North America without the need for an adapter. Good luck!