So named for the four methods of transportation required en route: train (MAX), trail, tram (Portland Aerial Tram) and trolley (Portland Street Car). Chances are you paid for them, so why not take advantage?
All year round
If you find any factual innaccuracies in this post, please email me via richard at thingstodoinportland dot org so I can fix it for everyone. Thanks in advance!
Take MAX to the Zoo stop and follow the signs from there... [Google map].