Our time on Gistholmen was FANTASTIC! However, it started with the hiccup of the VRBO description being on the wrong island (it is NOT on Ingmarsö Södra, an 8 minute walk from the ferry dock as the description is or at least was, hopefully that gets updated!). It is on Gistholmen that you need to take the Waxholmsbolaget ferry to (no need to book ahead, but depending on the day and season there might only be two potential drop-off and pick-up times). Our lovely host offered to refund our money, but we jumped through the hoops and got there and absolutely loved our time there in the sweetest cabin, rowing around the islands and spending evenings in the superb sauna.