The city is fairly compact, measuring only 11 km long and 6.5 km wide so if you are up for a good walk you can get around by foot; however, be warned that much of the city is on the side of a large hill. The street system is mostly a grid, with Columbia Street the major street along the Fraser River and 6th and 12th Streets being the major streets that run back from the river towards Burnaby.
The TransLink bus routes are designed to connect New Westminster with Vancouver and other neighbouring municipalities so you may need a transfer depending on where you are going. Bus route #106 goes up 6th St, #112 follows Columbia and 12 Streets, #123 travels along 8th St and #154 and #155 cut along 6th Ave at the top of the city. The New Westminster, 22nd St and Braid SkyTrain stations also have a number of buses that meet there.
There is a Tourist Information Center in Westminster Quay at the foot of 8th Street.