Mid-summer patterns are now strongly in play. Muskies have long established their home ranges as their forage and habitat have settled into stable patterns. This is not to say that musky positioning has become stagnant, however. Variations in weather, light penetration, and forage movements drive muskies to change position from hour to hour and day to day. What type of structure offers muskies and their prey the widest variety of habitat? Complexes.

Complexes are actually not a single type of structure. Rather, a complex is a relatively concentrated area with a variety of connected structural elements. A simple example of a complex would be an island at the tip of a shore-related point. The three elements of this complex would be the point itself, the island, and the saddle that connects the point to the island.

Complexes are crucially important areas for muskies during the middle of the summer because they offer so much structural variety in a small acreage. Add some cover like weeds or timber, and you are looking at a hot spot. Complexes allow muskies to patrol from one structural element to the next, sampling conditions at each spot according to their needs throughout a day and throughout the summer. Complexes are likewise very useful for musky anglers. They allow us to fish many different structural elements without having to make long runs between spots. This helps develop patterns quickly.

There are a few characteristics that make certain complexes stand out from the pack. The first is, well…complexity. The more structural elements there are in the complex, the better. What’s more, the greater the degree of irregularity in each of its elements, the better the complex will be. A hump in a complex that has simple concentric circles for contours is not as good as a hump or reef with lots of spines, extensions, and inside turns. Irregularity can also be vertical: if you were to look at a reef from the side, does it have many rises and falls in its depth? That vertical irregularity gives greater variety to the spot.

The second characteristic that is desirable in a complex is cover. Is there vegetation on this structure? How about boulders with gaps that allow minnows and crustaceans to hide? Is there fallen timber or fish cribs on the structures? All of these provide security to forage and ambush points for predators.

The final and most important characteristic for a complex is proximity to deep water. Muskies, especially big ones, relate to deep water in the summer. Deep water allows muskies to regulate their temperature, their exposure to ambient light, and their access to pelagic forage. What depth counts as deep is dependent on the clarity of the water in the lake. “Deep” means at least three times the depth at which your bait disappears from view on a bright calm day. If you can see your bait 10 feet down, deep water is 30 feet or more.

Fishing a complex is not as simple as fishing one structural element after another. Be sure to fish the connecting saddles as well. Muskies that are transitioning between structures in the complex will often position in these saddles. What is more, wind-induced current blowing through a structural gap (like the space between islands or reefs) can draw muskies onto these saddles as well. Indeed, the space between structures can be more important than the structures themselves. Another tip about fishing complexes: look for that “last” structural spot on the complex before it reaches open water. That might be a small deep spine off an outside island that extends into the basin away from the rest of the complex. It’s called “last” because these spots are usually the last spots to be fished before anglers move on to another area. This is often the spot where the “queen” of the spot will position herself. Don’t skip it just because the crown of the reef or the tip of the point didn’t show a musky.

Complexes are classic mid-summer musky structure. Move away from shore-related weeds and use the variety of complexes to your advantage to find more and bigger muskies.

By mid-July, many Canadian Shield lakes settle into summer routines. Water temperatures rise, weed growth stabilizes, and obvious shallow cover has been pounded for weeks. As baitfish and walleyes relocate to deeper offshore structure, muskies aren't far behind.

Yet, deep-water fishing unnerves many anglers. Shorelines offer visual comfort—reeds, cabbage, and boulders are easy targets. Deep rock offers no such reassurance. You are often casting into open water, sitting over 30 feet while targeting a ledge 15 feet down. Without visual cues, it feels like fishing empty water, causing anglers to leave too soon.

Start With Life, Not Just Structure

A visually appealing reef isn’t automatically productive. Don't look for rock; look for rock connected to life.

Walleyes are your best clue. They utilize the same reefs, points, saddles, and breaklines that hold summer muskies. Concentrated walleyes signal active food, oxygen, and current. You aren't just looking for structure on a map—you're locating an active food chain.

Before casting, scan with your electronics:

Muskies don't always sit directly on the rock. They suspend off edges, hold along breaks, or slide onto crowns during feeding windows.

Build a Depth Memory

When you mark walleyes on a reef, note their exact depth. If walleyes consistently hold along 12- to 16-foot ledges across multiple spots, that depth range becomes your primary blueprint for the lake.

Mentally log the depth, drop a waypoint, or jot down notes. Pay attention to positioning: were fish on the windward edge, along a saddle, or off a point? Instead of blindly working an entire reef, trace that precise contour line where it intersects bait, wind, or irregular rock.

Wind and Presentation

Deep water doesn't negate wind. Strong breezes concentrate bait, generate current across saddles, and activate predators along exposed edges. Always start on the side receiving the most water movement, targeting the sharpest break or key irregularity. Precise boat control is critical to keep your lure tracking naturally along the contour.

Furthermore, deep structure doesn't always demand deep-running lures. Muskies feed upward. A fish holding on a 20-foot break will easily rise to strike a lure running several feet overhead. Often, the best presentations travel over structure, not through it.

The Offshore Payoff

Deep-water confidence rarely builds instantly, but one encounter changes everything. Offshore muskies see far less pressure than shallow fish conditioned by non-stop casts and trolling motors. Once a musky appears from the deep, the water no longer feels empty—it reveals its shape, turning initial discomfort into game-changing confidence.

The Double Tap Flap is the new limited-run topwater offering from Bomb Squad baits. It is a large lure, similar in size to Bomb Squad’s MK-65 Flap Tail, with a weight of 7.8 ounces. It’s distinction from other premium flap tails on the market is its two-blade design. The blade arm and the hanger arm are secured to the body by a heavy duty, custom designed attachment that each screw into the body in two places, eliminating the possibility of twist. The blades are spaced so they not only intermittently bang against the striker plate on the back of the bait, but also against each other, creating a rattling, ringing presentation. The blades are attached by split rings, so it is possible to change blade colors if desired (changing blade sizes must be done with care to avoid throwing off the balance of the blades and the desired intermittent blade collisions). The diameter of the body itself throws a large wake behind the bait in addition to the attraction of the blades.

Most flap tails are best worked very slow, a fact that makes it difficult to work in tandem with many other lure types being cast by partners. However, the Double Tap Flap works very well at a moderate pace. The wake created when cranked in at its top speed is truly impressive, and the intermittent blade collisions keep the bait acting like a flap tail (unlike single flap tails which tend to simply spin when reeled too fast).

The Double Tap Flap suffers from the same casting issues as other “hanger arm” flap tail surface baits. Unless the angler casts very deliberately with a heavy thumb on the spool, the hook hangers tend to tangle with line and leader, fouling the cast. It is also a challenge to work properly during boat-side maneuvers since, unlike prop baits, it is not very effective when submerged, in our experience. That said, the Double Tap Flap, with its large profile and unusual sound, has accounted for a number of very large muskies. We’re not sure if the profile reminds muskies of a muskrat or a juvenile bird on the surface, but whatever it is large muskies are attracted to this lure.

When you find walleyes and baitfish gathered around deep rock in mid-July, do not treat them as separate from your musky search. Treat them as evidence.