The basics
- Address
- 7858 Middle Channel Dr, Harsens Island, MI 48028
- Phone
- (810) 748-3400
- Website
- middlechannelmarina.com/
- Hours
- Seasonal, roughly April through October; open daily in summer, about 8am-8pm with later closes Fri-Sat.
By boat
- Dock space
- Daily and weekly slips, houseboat stays, and boat rentals; the fuel dock carries ethanol and non-ethanol gas, and the store sells pizza, snacks, beer, and wine.
Fuel prices
- Checking for reports…
Boater-reported — call ahead to confirm.
Last verified August 14, 2026