This is a large area to cover but historically, the fish have been found throughout this region. You'll want to be fishing in 30 to 50 fathoms of water. When targeting these depths, you'll be in areas where the feed is more plentiful. And consequently, you'll find more salmon.

"You'll be in 30 to 50 fathoms of water," Squires said. "But your lines will typically be between 50 and 100 feet. Sometimes you will find yourself going deeper. If you find fish near the bottom, you may have to drop down 150 feet."

In late June, going too far south might not be the answer. Many opt to head north to Duxbury Reef instead. By July, salmon will likely move closer to the shoreline. Trolling near shore, 60 to 70 feet down in 180 feet of water is common.

By the time July arrives, you'll start shifting more towards mooching. Given the ocean's normal upwelling, bait should start to concentrate near shore -- which opens up the door for mooching.

Key to mooching is the ability to cover the water properly. You have to have a GPS and know how to use the tracking capabilities. It is vital to obtain a proper drift. Squires said that you should always set up your first drift, be it right or wrong, and drift it.

Don't try to change it once you've started. The purpose of this drift is to establish a direction of the drift. Once this is done, you can position your boat over bait balls that you've marked with a GPS.

"You can use a quick point or a man-overboard waypoint on a GPS to establish your next drift," said Squires. "You'll use those quick points that marked bait balls to get a good drift."

"If you don't establish that bait line through the drift, you will not know where to set up your drift to drift through the bait. You'll be just another boat out there fishing."

Now, use that drift line as your benchmark and fish incrementally different drifts. Space them apart so you are covering water all around the bait.

The analogy is straightforward: To try and catch steelhead, you wouldn't go down to the river and stand in one place. You move throughout the hole and cover different areas.

In the ocean, the same principle applies. It's more effective to fish all around the bait ball, rather than in just one small area. Also, keep in mind that you are fishing currents, so bait will move with the current.