Hey Leute, ich wollte euch fragen, was ihr über die Bouvetinsel wisst und ob ihr sie besuchen wollt

It is remote and hostile and may be illegal to visit to protect the wildlife there. Nobody would considering visiting it anyway except for research.

Google the rest.

Sure, you just need to go there with a ship with arctic sailing capabilities that is large enough to have a helicopter on board. Then you fly there with the helicopter, take some snaps and fly back to your ship.

Unless you are filthy rich, there is no way to go there.