| Business | Phone |
| Walkers Landing 8296 Bates St, Harsens Island 48028 | (810) 748-9848 |
| South Channel Yacht Club 7350 S Channel Dr, Harsens Island 48028 | (810) 748-3535 |
| Sunset Harbor 1784 N Channel Dr, Harsens Island 48028 | (810) 748-3082 |
| Schneider Marine Svc 7116 Mcdonald St, Harsens Island 48028 | (810) 748-3011 |
| Tashmoo Marina Inc 3272 S Channel Dr, Harsens Island 48028 | (810) 748-3330 |