To 13 ports; the busiest crossings are to Yxlan (4 minutes, 43 times a day), Kapellskär (25 minutes, every day, late June to mid-August), Lidö (55 minutes, every day, late June to mid-August), Gräddö (1 hour 5 minutes, every day, late June to mid-August), Finnhamn (1 hour 10 minutes, every day, late June to mid-August), Norrtälje (2 hours, every day, late June to mid-August), Sandhamn (2 hours 50 minutes, every day, late June to mid-August) and Svartlöga (1 hour 45 minutes, six times a week, April to early December).