TransLink (www.translink.bc.ca) oversees public bus, SkyTrain light rail and SeaBus commuter boat services. Its website has handy route maps and a trip-planning tool.
Tickets bought on any of these services are valid for up to 90 minutes of travel on the entire network. One-zone tickets cost adult/child $2.75/1.75, two-zone tickets $4/2.75 and three-zone tickets $5.505/3.75. An all-day, all-zone DayPass costs $9.75/7.50. After 6:30pm or on weekends or holidays, all trips are classed as one-zone fares and cost $2.75/1.75.
Books of 10 FareSaver tickets (adult one/two/three zones $21/31.50/42, child all zones $17.50) are a good way to save if you're planning multiple trips. They are sold at many convenience stores and drugstores throughout the city.
Children under five travel for free on all transit services.
At the time of research, fare gates were being installed in SkyTrain stations for the introduction of a new card ticketing system called Compass, currently scheduled to start between late 2013 and early 2014; check the Translink website before you arrive for the latest information.