The weir is a great place to visit and I highly recommend it. It's interesting to see the birds and all of the plants and animal life coalescing in one area. The Railway Bridge is a great bridge to walk on but you need to be careful and ensure that the railing is secure. There is a special ledge on the stairs leading up to the Railway Bridge that will help you to bring your your bike up on the bridge however I recommend walking your bike on this bridge because there are gaps between the the boards. So the Weir is a very popular place and there is public parking that is free however it is often very busy so I recommend parking on a street beside the weir if you find that there is no parking available. The Weir is nicely situated between the Railway Bridge and the university Bridge so if you just walk past the weir and go up the Railway Bridge heading east then you'll be able to start walking along the path that coincides with the University of Saskatchewan property and then you can walk west on the University Bridge then head north along the meewasin Valley Trail. It's a really nice walk. I think it takes about an hour or so, however you may come across some wildlife. I believe I've seeing coyotes on the east side of the road and there may be mosquitoes.