Hubbles Lake is a small spring-fed lake about 25 minutes west of Edmonton. The water quality is good and a paddle around the edge is maybe 3km or so. To get to the lake, take Highway 16 west past Stony Plain. Then turn south on Range Road 13 and go about 3km. There is a gate on the west side of the road.
The easiest public access is through the Allan Beach Resort and there is a charge (we paid $12 per adult). Best to check operating hours (when we went, they opened at 10 and restricted the number of visitors). You can drive down to the lake to load and unload but you need to return to the top to park (four-minute walk?).
This is probably good family lake or one to learn on. It was a bit small and over developed for my taste.
Update: In August of 2024, I took a drive around the lake and found two public accesses. The north access is along Allan Drive (about 300m after you turn in from Range Road 13). There is a sign that marks the access point (a shot trail down to the water).
The difficulty with this access is that there is no parking anywhere along the road. You might be able to stash your car back by the mailboxes as you turned off Range Road 13. There is a similar sign (and a longer carry) on the southwest shore off of Diamond Drive along with a similar parking problem.