To 19 ports; the busiest crossings are to St Mary's Wandsworth (6 minutes, 29 times a day), Chelsea Harbour (12 minutes, 29 times a day), Battersea Power Station (24 minutes, 29 times a day), Vauxhall (30 minutes, 29 times a day), Embankment (52 minutes, 29 times a day), North Greenwich (1 hour 50 minutes, 29 times a day), Cadogan (18 minutes, 26 times a day) and London Bridge (1 hour 10 minutes, 26 times a day).