Taxis in Awajishima (Nijigennomori)

Hello!

My family and I will be visiting Nijigennomori (Naruto land!) on Awaji Island in late June.

We have transportation arranged from our hotel in Osaka to Nijigennomori. However, I am considering taking a cab from Nijigennomori back to our hotel in Osaka.

I know it is expensive, but most importantly, I wanted to see if anyone can confirm that there are cabs available on Awajishima near Nijigennomori that will be willing to take a trip to Osaka.

Any help would be greatly appreciated.

Thank you!