Long Lake

Long Lake is Portage's big water: roughly 512 acres running along the city's southeast side, half in the city and half in Pavilion Township, with about 315 homes on a shoreline that's been resort country since the Grand Rapids & Indiana railroad ran a spur to Ramona Park in 1886. The lake sits on glacial outwash laid down some 14,800 years ago, its level set by court order at 856 feet back in 1925 — the same datum as Austin Lake next door — and the Potawatomi lived, fished, and planted corn here long before any of it; longtime residents still turn up artifacts.

The geography every boater learns fast: the famous mid-lake sandbar, a shallow bar reaching nearly across the middle where the water thins to a foot and a half. It's the lake's social heart — the raft-up and wade-out spot on summer Saturdays (the 4th of July boat parade musters there at 1pm) — and a genuine navigation note for anyone crossing the middle with a prop. Boat traffic runs counter-clockwise, the county sheriff's marine division patrols regularly, and Ramona Park on the west shore adds a proper city swimming beach.

The fishing reputation rests on northern pike: the DNR manages Long Lake as a trophy pike water with a protected slot — pike from 24 to 36 inches go back — and the payoff is a real shot at fish most southern Michigan lakes stopped producing decades ago. Largemouth, bluegill, and black crappie carry the everyday fishery, 57 feet of depth holds fish through summer, and it's a well-known ice-fishing lake in winter. Around 1900 the lake even supported commercial fishing.

And the legend: in the winter of 1901, resident Frank Denner built a ten-foot wooden sea serpent, anchored it offshore on a hidden pulley rig, and terrorized the lake with it intermittently for years — anglers fleeing, cottagers panicking, residents patrolling with shotguns. Nobody solved it until Denner confessed on his deathbed in 1942. Every lake should be so lucky.