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Map of Regina Wreck (Sanilac Shores Underwater Preserve)
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IntermediateBoat entry

Regina Wreck (Sanilac Shores Underwater Preserve)

Michigan, United States
AOW suggested8–24 m (25–80 ft) depthBoat entry

Boat dive — see Entry & access.

Regina Wreck (Sanilac Shores Underwater Preserve) at a glance

Regina Wreck (Sanilac Shores Underwater Preserve) is an intermediate boat dive site in Michigan, United States with depths of 7.6–24.4 m (25–80 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Zebra/quagga mussel, Burbot, and Round goby. Check the latest conditions and entry details before you go.

Next window today· 8:00–19:00 · favorable · sunset 18:31

Wind forecast for this hour · 3:00 · run 2 h ago
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Tap a factor for its source and model point

Site hazards: Overhead environment inside inverted hull (trained divers only), cold thermoclines, monofilament and entanglement, boat traffic

Read the full hazards ↓

Dive windows this week

Sun8:00–19:00 favorable

11 kn wind (11 kn wind)

Mon8:00–11:00 moderate, 12:00–13:00 moderate, 13:00–17:00 favorable, 17:00–19:00 moderate

15 kn wind (15 kn wind)

Tue8:00–19:00 favorable

7 kn wind (7 kn wind)

Wed9:00–19:00 favorable

9 kn wind (9 kn wind)

Thu12:00–19:00 moderate

13 kn wind (13 kn wind)

Fri9:00–19:00 favorable

8 kn wind (8 kn wind)

Sat9:00–19:00 favorable

7 kn wind (7 kn wind)

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wind forecasts. Numbers under each bar are daylight averages.

First light 7:27 · Sunrise 7:56 · Sunset 18:31 · some windows run past sunset

Source: Open-Meteo wind · updated 25 Oct, 01:26 GMT-4

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Regina Wreck (Sanilac Shores Underwater Preserve)

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Zebra/quagga mussel, Round goby
Best time: June-September

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. January, 55% of days have historically been favorable, wind has typically been 14 knots
  2. February, 52% of days have historically been favorable, wind has typically been 14 knots
  3. March, 47% of days have historically been favorable, wind has typically been 14 knots
  4. April, 57% of days have historically been favorable, wind has typically been 14 knots
  5. May, 73% of days have historically been favorable, wind has typically been 12 knots
  6. June, 80% of days have historically been favorable, wind has typically been 12 knots
  7. July, 88% of days have historically been favorable, wind has typically been 10 knots
  8. August, 87% of days have historically been favorable, wind has typically been 10 knots
  9. September, 92% of days have historically been favorable, wind has typically been 10 knots, historically most favorable
  10. October, 74% of days have historically been favorable, wind has typically been 12 knots
  11. November, 48% of days have historically been favorable, wind has typically been 14 knots
  12. December, 49% of days have historically been favorable, wind has typically been 14 knots

September has typically 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.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated June 2026

Site details

The Regina is a 250-ft steel package freighter lost with all hands in the Great Storm of November 1913 and not located until 1986. She lies upside down off Port Sanilac in the Sanilac Shores Underwater Preserve in about 80 ft of Lake Huron, with the hull bottom reached at roughly 25 ft. A 56-ft opening in the hull allows qualified wreck divers into the hold, and scattered cargo still litters the lake floor around her.

boatwreck

Overhead environment inside inverted hull (trained divers only), cold thermoclines, monofilament and entanglement, boat traffic

Reviews

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