So while Null Island is one of the most 'visited' places on Earth, the island itself doesn't exist - it's a geocoded point added to the Natural Earth map, among others, to indicate the latitude/longitude location of (0,0).
That said, the location itself is very real, and there's something there to see - Station 13010 - Soul is a buoy moored at the exact (0,0) coordinates.
I've looked this location up over the years, and not being that close to land (Accra, Ghana isn't too far away, but isn't close enough), if I was able to visit it (like visiting the poles, but on water), I'd have to rely on transportation other than myself, I suspect.
I don't believe any flights go directly over it, or at least you couldn't rely on it, so I'm wondering if there are any organised boating tours / cruises that visit this point, for the novel moment of crossing (0,0)? Or helicopters, perhaps? Basically, are there any ways to get to this location on the earth?