What Loon Cove Offers and Where to Find It

Loon Cove sits on the western shore of Lake Sunapee, tucked between the main lake and a narrow inlet that creates a natural refuge for bass and panfish. The cove is shallow enough in its upper reaches to hold largemouth bass and bluegill, while the deeper water near the inlet mouth holds smallmouth bass year-round. You'll find it roughly two miles north of the Sunapee Harbor area, accessible by boat from any of the public launches on the lake.

The cove's real advantage is protection. When the main lake gets rough in spring wind or summer afternoon chop, Loon Cove stays manageable. That protection also means the water warms faster in spring and holds more stable temperatures through early summer, which affects where fish position themselves and when they feed.

Access is by water only—there is no shore access or parking lot dedicated to the cove itself. You'll launch from Sunapee Harbor State Beach (fee required) or from the New London town launch on the eastern shore, then run north along the western bank. The run from either launch takes 10 to 15 minutes at idle speed.

Key Takeaways

  • Loon Cove holds both largemouth and smallmouth bass, with largemouths favoring the shallow upper cove and smallmouths concentrated near the inlet mouth in deeper water.
  • Spring (April through May) and fall (September through October) are the most consistent seasons, when water temperature and light levels trigger active feeding in the cove.
  • The cove's shallow upper end produces bluegill and pumpkinseed in summer, making it a reliable panfish spot when bass are sluggish in midday heat.
  • You must launch from a public ramp on Lake Sunapee itself; there is no direct parking or shore access to Loon Cove.
  • Early morning and late evening are most productive year-round, as the cove's shallow water and protected nature mean fish move to deeper or shadier spots during bright midday hours.

Smallmouth Bass in the Inlet and Deeper Water

Smallmouth bass in Loon Cove concentrate near the inlet mouth where the cove opens to the main lake. This transition zone—roughly 12 to 20 feet deep—holds fish year-round because it offers both shallow feeding grounds and quick access to deeper refuge. In spring, smallmouths move into the inlet and the shallower cove water as temperatures climb above 50 degrees, but they stay near structure: rocky points, submerged logs, and the channel edges where current flows.

Summer smallmouths in the inlet are most active in early morning and late evening. During midday, they drop to the deeper side of the inlet mouth or suspend along the channel edges. Casting small tubes (2 to 3 inches), crankbaits that reach 8 to 12 feet, or soft plastics on light jig heads will produce. The inlet's current—even slight—concentrates baitfish, so fish the edges where moving water meets slack water.

Fall is when the inlet really produces. As water temperatures drop through the 60s in September and October, smallmouths move shallower and feed more aggressively. This is the window for topwater early and late, and for larger crankbaits that mimic the shiners and alewives moving through the cove.

Largemouth Bass and Shallow-Water Structure

The upper cove—the back half farthest from the inlet—is largemouth water. Depths here run 4 to 10 feet, with plenty of submerged brush, fallen trees, and weed growth along the shoreline. Largemouths use this shallow structure for ambush, especially in spring and early summer when they're spawning or feeding heavily after the spawn.

Work the edges of weed beds and fallen timber with soft plastics rigged Texas-style or on jig heads. A 4-inch worm or creature bait will draw strikes from fish holding tight to cover. In spring (April and May), fish the shallowest water first—2 to 4 feet—early in the morning. As the day warms and sun angle steepens, largemouths retreat to slightly deeper edges or move to the shadiest cover available.

Summer largemouths in the upper cove are often inactive during midday but feed heavily in the hour before sunset and the first hour after sunrise. If you're fishing midday, focus on the deepest available structure—the 8 to 10-foot edges—where fish retreat from bright light. Spinnerbaits and buzzbaits can trigger reaction strikes from fish that aren't actively hunting.

Panfish and Summer Bluegill

Bluegill and pumpkinseed sunfish are abundant in Loon Cove's shallow upper end, particularly in summer when largemouths are sluggish and smallmouths are deep. These fish hold around weed edges, fallen trees, and the shallow rocky areas near shore. They're most active in early morning and late evening but will bite throughout the day if you find shade—under overhanging trees or in the deepest available weeds.

Light tackle and small offerings work best: 1/32-ounce jigs tipped with a small piece of worm, tiny spinners, or even a small dry fly if you have a rod rigged for it. Panfish in protected coves like this one tend to be less spooky than their main-lake cousins, so you can fish closer to shore and in shallower water without losing bites.

Late June through August is peak panfish season in the cove. Water temperatures in the shallows can reach the low 70s, which keeps bluegill active and feeding. A morning or evening session targeting panfish is a solid backup plan if bass aren't cooperating, and it's an excellent way to introduce someone new to fishing.

Seasonal Patterns and Best Times to Fish

Spring (April through May) is when Loon Cove produces most consistently. Water temperatures climb from the 40s into the 50s and 60s, triggering both largemouths and smallmouths to move shallow and feed. The cove warms faster than the main lake, so fish move in here earlier in the season. Early morning is critical—fish the first two hours after sunrise before the sun angle climbs and spooks shallow-water bass.

Summer (June through August) is hit-or-miss during midday but productive early and late. The cove's shallow water heats up quickly, pushing fish deeper or into shade by 9 or 10 a.m. If you can only fish midday, focus on the inlet mouth and the deepest edges of the upper cove. Early morning and late evening sessions are far more reliable.

Fall (September through October) rivals spring for consistency. Water temperatures drop through the 60s and 50s, and fish feed aggressively in preparation for winter. The entire cove—shallow and deep—holds active fish. This is the best window for topwater and larger lures that mimic baitfish migrations.

Winter (November through March) is possible but challenging. The cove doesn't freeze as quickly as shallower areas, but ice can form along the edges. If the cove is open, fish the inlet mouth and deeper water with small jigs and live shiners. Most anglers focus on other parts of Sunapee or move to other lakes during winter.

Tackle and Technique for Loon Cove Conditions

A 6 to 6.5-foot medium-power spinning rod with 8 to 10-pound braided line or 10 to 12-pound monofilament is ideal for the cove's mix of largemouths, smallmouths, and panfish. Braided line gives you better sensitivity in shallow water and around structure, while monofilament is more forgiving if you're new to the cove and learning where the submerged logs and rocks are.

Carry a mix of lures: soft plastics (4 to 5-inch worms and creature baits), small crankbaits (1/4 to 3/8-ounce), spinnerbaits, and topwater plugs for early morning and late evening. A few small jigs (1/16 to 1/8-ounce) rigged with panfish in mind will round out your box. The cove doesn't require specialized or expensive tackle—standard bass and panfish gear works well.

Casting accuracy matters more than distance. The cove is small enough that you can reach most productive water from a drifting or anchored boat. Focus on placing your lure tight to cover—within a foot of fallen trees, weed edges, and rocky points—rather than casting far and wide.

Launch Points and Practical Details

Sunapee Harbor State Beach is the most popular launch on the western shore. There is a parking fee (varies by season and day of week) and a boat launch fee. The ramp is concrete, well-maintained, and can handle trailers. From here, run north along the shore for about 10 minutes at idle speed to reach Loon Cove.

The New London town launch on the eastern shore is less crowded and has lower fees, but it requires a longer run across the main lake to reach Loon Cove. If you're launching from the east side, head northwest across the lake toward the western shore, then run north to the cove.

Loon Cove itself has no mooring field or designated anchorage, but the water is calm enough to anchor in most conditions. Bring a small anchor or drift sock if you plan to stay in one spot for more than a few casts. The cove is narrow enough that you can fish effectively by drifting with the wind or current.

Frequently Asked Questions

What's the difference between fishing the upper cove and the inlet mouth?

The upper cove (back half) is shallower, warmer, and holds more largemouths and panfish. The inlet mouth is deeper, cooler, and holds more smallmouths year-round. In spring and fall, both areas produce. In summer, the upper cove is best early and late; the inlet is more reliable midday.

Can I wade or fish from shore in Loon Cove?

There is no public shore access or wading area at Loon Cove itself. You must launch a boat from one of the public ramps on Lake Sunapee. The surrounding land is private property.

What size fish should I expect to catch?

Largemouths in the cove typically run 12 to 16 inches, with occasional fish in the 18 to 20-inch range. Smallmouths average 10 to 14 inches. Bluegill and pumpkinseed run 6 to 9 inches. These are solid fish for a protected cove, though not trophy-sized.

Is Loon Cove better in morning or evening?

Early morning (first two hours after sunrise) is most consistent year-round. Late evening (last hour before sunset) is also productive, especially in summer and fall. Midday can work in spring and fall, but summer midday is slow unless you fish deep structure or the inlet mouth.

Do I need a New Hampshire fishing license to fish Loon Cove?

Yes. New Hampshire requires a fishing license for anyone 16 and older. You can purchase a short-term or annual license through the New Hampshire Fish and Game Department website or at most bait and tackle shops near the lake.