After the bowling centre (which is at the end of the carpark at Albion station). You can hop into the canal for a bit of an explore (it's 20m to the left, heading away from the station). You can either head back under Ballarat Rd. or do as I did and head into the main tunnel. It's only about 5 or 600m long but I like it. It's pretty simple (like me) but it has some good light and a nice stairway into it. If you want to get out the other end, be prepared to get your feet wet. And remember kiddies "NO drains when it rains". There is another part to this system which goes under Anderson Rd. but I didn't do that section.