I hear there are significant carp in Elk lake on Vancouver Island. One guy told me that the fish they spotted was big enough to scare his girlfriend while she was kayaking with him on the lake last summer.
No experience with them myself yet, but I plan to try worms on the bottom by the lilly pads this summer ... who knows what I'll find in that lake?
... catfish, carp, bass, coho?
Of note though: I hear that you cannot fish with corn or chum the water, as is common for carp, in trout lakes because the corn gets stuck in their digestive tract.
If anyone knows for sure, post a clarification.
Alex