The castle is 14km east of Ekenäs, and about 2km west of the wonderfully named village of Snappertuna. It’s signposted Slottsruiner/Linnanrauniot off the main road; buy your tickets at the cafe. There’s not a lot of explanatory material in English, but it’s great to climb up and down the levels and patrol the ramparts. There are free tours from mid-May to August weekends at 3pm. During July there are evening concerts at Raseborg; contact the Ekenäs tourist office for details. There are occasional buses to Snappertuna from Ekenäs or Karis.