The Elliott Bay Water Taxi blew the old record out the door this year. A total of 161,331 riders used the West Seattle-to-downtown service this summer, as compared with 122,650 riders in 2006. The additional ridership revenues generated allowed King County to operate the water taxi during October weekday commute hours.
The Water Taxi also ran one month less in 2007. Not too shabby.
http://seattlepi.nwsource.com/transportation/338929_watertaxi09.html