To 10 ports; the busiest crossings are to Birchgrove (3 minutes, about 23 times a day), Circular Quay (20 minutes, about 23 times a day), Woolwich (3 minutes, 22 times a day), Cockatoo Island (8 minutes, 22 times a day), Balmain (9 minutes, 22 times a day), Greenwich (Sydney) (3 minutes, about twice a day), Northwood (6 minutes, about twice a day) and Longueville (10 minutes, about twice a day).