Harbour

Schneider Marine Service

Harsens Island, United StatesGreat Lakes
Type
Harbour

Small boatyard and marina at 7116 McDonald Street on Harsens Island, in the St Clair Flats delta of Lake St Clair.

Guide

Approach and anchoring

On the South Channel of the St Clair River delta. Harsens Island is reached only by the Champion Auto Ferry from Algonac across the North Channel. Maximum vessel size 32 ft. Heavy freighter traffic on the main St Clair River shipping channel north of the island.

Practical

One transient berth, 30-amp shore power, heads. Hull and engine repair on site. Hauling, indoor and outdoor winter storage. Family-run yard operating since 1953. Phone 810-748-3011.

Ashore

St Clair Flats State Wildlife Area covers most of the island, the largest freshwater delta in North America. Marshes, waterfowl, and a network of small roads suited to cycling. Sans Souci hamlet within walking distance.

Key facts

Type
Harbour
Coordinates
42.55811, -82.61410 (42°33.49'N 82°36.85'W)
Town
Harsens Island
Country
United States
Updated
July 7, 2026

Getting there

Schneider Marine Service lies at 42°33.49'N 82°36.85'W, that is 42.55811, -82.61410 in decimal degrees.

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