Between the end of May and the beginning of September, there is regular boat service between Nynäshamn – Gotska Sandön and Fårösund (Gotland) – Gotska Sandön.
For booking information, see the link below:
You can also visit Gotska Sandön with your own boat. You should bring along the Kustkort 62 nautical chart.
Fårö is located about 38 km (20 nm) south of Gotska Sandön and Landsort is about 90 km north-west of Gotska Sandön.