San Marino has open borders, but foreigners staying more than 20 days in San Marino must have a permit from the government.
By plane
San Marino has no airports. The nearest major airport is at Rimini. There are other airports at Ancona, Bologna and Forlì.
By train
San Marino has no railway stations. The nearest major railway station is at Rimini.
By car
You should have no problems driving into San Marino. Border controls do not exist.
San Marino is highly accessible but can take 3-4 hours from the West.
Mostly all free parking, try not to park right at the bottom of the hill, otherwise it's a long way to the top!
By bus
Bus 72 runs from Rimini to San Marino daily at regular intervals. A return ticket costs around € 9. This bus can be found just outside the Rimini train station (outside Burger King). Note that when we showed up for the bus just a few minutes before departure it was full and we were told to wait until the next bus, one hour later. It is perhaps then advisable to show up a little bit earlier to ensure enough seats remain on the bus. There was someone selling tickets at the tourist centre in Rimini or inside the bus.
By other means
There is a 1.5 km cable railway connecting the city of San Marino to Borgo Maggiore
