Canoes Perth

Getting fit in Perth?
My friends and I want to do something a bit different to swimming at the beach or going for run to get fit. I have tried looking at gym websites but there are only classes you have to sign up for 8 weeks and stuff. I also looked at things like canoeing but they were very expensive. Any ideas or do you know of any places we can go just for a one off thing?
You can walk around the river, or cycle. Many gyms offer non member entry. Try walking at Kings Park or Jacobs Ladder.
Perth Storm Canoeing