Free, but I don't believe the public is allowed to access the top.
Last time I was there it was open and free to the public you just have to wear tennis shoes to climb it. I was there a couple months ago. Cute lighthouse not very tall.
Donations only. Schedule 2 weeks ahead of time and you can climb it. I climbed it end of August, they were shutting down climbing for repairs soon so you better check with them. Not a spiral staircase, it has ships ladders, a much harder climb.
It donation's and yes u have to make an appointment 2 weeks in advance. I was very disappointed only to be able to see the outside.
Free, first time i have heard you could go in it.
The view from the outside is awesome as well. So don't neglect to just go, because you can't go inside, go either way. Definitely worth seeing.
Appointment only for tour, not sure about all the way to top.
Yes free tour to top, but several rules and want lead time more like 4 weeks and reservations needed​. Google oak island lighthouse tour. Worth it!!
You can got to the top with a pre-scheduled (2 week advance) notice
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