This might seem like a silly idea but you might want to consider flyfishing for bass at this time of the year. Correct me if I am wrong here but I believe the trout fishing slows down in our local lakes as the weather warms up. If anything, the bass get more active in the summer so I prefer to target these at this time of the year.
Anyway, a good location for this should be Albert Dyck park in Abbotsford. I can testify to this because I was there with my wife yesterday and we landed five bass between us over a three hour stretch. The water is gin clear so you can see them cruising about in small schools. Th water clarity made them cautious but they could be enticed on small spoons and plastic worms (especially one of my copper/red ones). The only downside is they are very small. (All less than half a pound)
If you don't care about species or the size of fish I would suggest this spot should be quite a good option for newbie fly fishermen to practice their skills. (..had I known more I would have been out with my fly rod yesterday
) I don't flyfish for bass but I am pretty sure they would be just as agressive on wooly buggers as with any other lure (The only reason I don't flyfish for them is the spots I normally go to don't have much clearance). The other nice thing about Albert Dyck is there are no weeds to snag you up - just look to see where the schools of bass are and make a cast near by [Then watch them all turn round and head over to your fly - most will do nothing but eventually one will take a grab].
Albert dyck park has quite steep banks around it in most places but a short wade out should make casting possible. The water is gin clear right now so you can see them cruising about the shallows in some places - makes it a bit more challenging fooling them but it is a great way to see how your fly looks in the water and how the fish are reacting to it. Its was also fun to see them following the lure right to my feet sometimes.
PS: Whonnock is a great place for crappies too - they will also take the same flies used for trout. [like bass, these fish prefer the warmer weather]