Boat dive — see Entry & access.
Sport Wreck (Sanilac Shores Underwater Preserve) is a boat dive site in Michigan, United States with depths of 7.6–13.7 m (25–45 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Round goby, Zebra/quagga mussel, and Yellow perch. Check the latest conditions and entry details before you go.
Tap a factor for its source and model point
Site hazards: Cold thermoclines, boat traffic, entanglement on wreckage
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Best: FriFavorable windowModerate window— no window
First light 6:36 · Sunrise 7:05 · Sunset 19:47
Source: Open-Meteo wind · graded 1h ago
Forecast only — always assess conditions on site.
Forecast · NOAA tide model
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Dated firsthand observations from divers — not current conditions.
No diver reports for this site yet. — one dated observation helps every diver after you.
Based on community reviews and site data. Conditions vary — always verify before diving.
What conditions have historically been typical at this site, month by month — not a forecast.
September hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.
Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.
Species noted at this site — not a promise of what you’ll encounter.
No dive shops mapped within 25 km. Know one? Add it to the map.
Data updated July 2026
The Sport, launched in 1873, was the first steel-hulled tug on the Great Lakes and sank in a December 1920 gale off Lexington; the crew washed ashore alive. Rediscovered in 1987, she rests upright with a slight starboard list in about 45 ft of water roughly three miles off Lexington in the Sanilac Shores Underwater Preserve, rising about 20 ft off the bottom with tools and relics scattered around the site. In 1992 she became the first Michigan shipwreck to receive its own Michigan Historical Marker, and her shallow depth makes her a favorite first Great Lakes wreck dive.
Cold thermoclines, boat traffic, entanglement on wreckage
Sport Wreck (Sanilac Shores Underwater Preserve) ranges from 7.6 to 13.7 metres deep (25–45 feet). It is a freshwater site. Depths vary across the site, so plan your profile to your training and verify conditions locally.
Sport Wreck (Sanilac Shores Underwater Preserve) is a boat dive — access is by boat rather than from shore. The entry area is recorded as moderately exposed to surge. No facilities are recorded at the site, and cell service is recorded as good. Entry details and parking notes, where known, are listed in the access section of this page.
The best time to dive Sport Wreck (Sanilac Shores Underwater Preserve) is typically June-September. Seasonal closures are recorded: Charter/mooring season roughly May-October. Conditions vary, so check the latest reports and forecasts on the dive site page before your trip.
Divers at Sport Wreck (Sanilac Shores Underwater Preserve) in United States commonly report sightings of Round goby, Zebra/quagga mussel, Yellow perch, and Smallmouth bass. Round goby, Zebra/quagga mussel, and Smallmouth bass are recorded as common sightings, while Yellow perch is reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.
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