Morning I do not live in the areas you mention but they are all close to the CBD and therefore you would have access to all it has to offer. There are a lot of bike paths in Melbourne and you should have a look at Bicycle Victoria web site for information
Bicycle Victoria
My husband is a keen and we belong to Bicycle Victoria.
For weekends you would be able to access the beaches Jan Juc Bells Torquay from living over that side and they are very popular.
Williamstown is lovely but pricey have a look at Realestate.com.au for the areas you are interested in and Google Earth to see what they are like.
Good luck

