Hi Dyan C, I am a Private Tour Guide who provides 1 day customized tours for Nagasaki and Fukuoka destinations. The Itoshima region is approx. 35 minutes from Fukuoka City and has many beautiful and interesting locations and attractions. Of course, they can be reached by using a rental car but a private tour takes the worry, uncertainty and planning out of the equation. Let me know if you have any more questions.

The view during sunrise is indeed beautiful but you won't be able to see the rising over the ocean. Futamigaura is famous for its sunset view with the sun going down between the Torii gate.

There are no regular bus services. I think the closest bus stop might be at the Kyushu Ito University Campus. To get there from Tenjin, got to the Solaria Stage Bus Stop and take the bus "K" Another option would be using the subway/train. Not sure how good your Japanese is, but there is a shuttle bus service from the Kyudaigakkentoshi Station. But you have to make a reservation via phone (Japanese only). You could also use a taxi from the Kyudaigakkentoshi Station. It's a 15km ride and it might cost you some 2500 - 3000yen but it is the easiest way to get there in your case I guess.