Gettin them consistently in the summer can be tricky but it can be done, during the day the best way to have a shot is trolling deep, ive trolled up to and past 40-50 fow for them. They do roam around so i try identify any cold water area that would hold forage for them, drop offs, islands, humps, shoals etc... Pike will hang out in the cool water but have no issue running into the bath to grab a meal and head back to the shade to digest. If i have a couple guys out ill run my baits at staggered depths in the water column to cover as much as possible.
In the morning and the evening they will come back up shallow to prey on easy meals, big topwaters and stop and go jerkbaits or anything that makes a bit of fuss will usually get their attention. About a month ago out of penetang while muskie fishing my partner had a huge pike smash a bulldawg beside the boat as he was just pulling it out if the water, this was right on the shallow side of the drop off as the sun was going down. They will be in the same areas just set up in a different spot.
Honestly, it never hurts to set up a big sucker and let it go for a swim, if you are patient you will see a big pike inhale that sooner or later.
Good luck!