A visa is not required to visit Heard Island or the McDonald Islands. However, since the region is a recognized nature reserve, you must get permission from the Australian Antarctic Division. As a result, joining an expedition team is required for access.
You can travel to Heard Island and the McDonald Islands via boat, as you would expect. Because the journey isn't taken very frequently, you'll need to arrange ahead of time. In terms of flying, the options are almost non-existent. Landings on Heard Island and the McDonald Islands are only permitted for compelling scientific reasons.
Because there is no economic activity on these islands, hotels, restaurants, and the like are out of the question. There are two buildings in the area: one is abandoned, while the other's status is unclear at this time. Unless you like camping, don't expect to locate a spot to sleep on the island. Your best chance would be to remain aboard the ship that brought you here.
If you decide to visit Heard Island and the McDonald Islands, safety should be your first priority. First and foremost, you must bring the appropriate equipment and clothing for the journey, especially because the temperature is cold and severe. Layering is definitely advised, but if you have the option of purchasing specifically insulated clothes, that is even better.
The terrain is tough, and if you are unprepared, you may easily damage yourself. It's worth noting that there are no medical facilities on the island, so you'd have to be flown if anything serious happened. It might take days for someone to contact you, exacerbating the problem.
The McDonald Islands and Heard Island are not for everyone. The environment is unwelcoming and demanding, and every bone in your body will be chilly at some point. However, as harsh as it may be, nature is beautiful, and you may come to enjoy it. In addition, we believe the penguins are motivation enough to come.