There are some resident escorts and many touring ladies make Hawaii a stop on their tours. Some come back regularly, so they must do okay here, or I assume they would not return. LeVipCollection is an agency that regularly sends providers here. FrenchGFE is another agency who has Hawaii on their regular rotation. Independent ladies GoddessJezebel, Tiffany Dream, Ginger Spyce, and Katelyn Ambrose stop in Hawaii a few times a year. There are others.  

Where to advertise? You can post ads here on the other cities ad board. It probably won't get you much response but it's free, and can't hurt. Use date-check and p411 if you are already on those sites. Backpage is an option. Many people bad mouth BP, but the site itself is not the issue. It is how you use the site. There are a few other sites which I can't mention on TER, but you can PM me if you want them.

Might not hurt to try to reach out to some of the ladies I mentioned above who are regular Hawaii visitors. Maybe they can give you insight from the provider's side.  

Aloha

Hit, or miss!

Take a risk, or require deposits to book.