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ExpertBoat entry

Tennie and Laura Wreck

Wisconsin, United States
Advanced suggestedExtreme depth 325 ft95–99 m (312–325 ft) depthBoat entry

Boat dive — see Entry & access.

Tennie and Laura Wreck at a glance

Tennie and Laura Wreck is an expert boat dive site in Wisconsin, United States with depths of 95–99 m (312–325 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Burbot. Check the latest conditions and entry details before you go.

No window today· next: tomorrow 8:00–9:00 · moderate

Wind forecast for this hour · 12:00 · run 11 h ago
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Tap a factor for its source and model point

Site hazards: Extreme depth 325 ft · Very long cold decompression · Rarely visited; no fixed mooring

All 4 hazards ↓

Dive windows this week

Lightest wind: Sun
MonNo window

19 kn wind (19 kn wind)

Tue8:00–9:00 moderate, 10:00–18:00 moderate

17 kn wind (17 kn wind)

Wed8:00–18:00 favorable

9 kn wind (9 kn wind)

Thu8:00–9:00 moderate, 9:00–18:00 favorable

9 kn wind (9 kn wind)

Fri8:00–18:00 favorable

9 kn wind (9 kn wind)

Sat8:00–18:00 favorable

7 kn wind (7 kn wind)

Sun8:00–18:00 favorable

5 kn wind (5 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 6:49 · Sunrise 7:18 · Sunset 17:50 · some windows run past sunset

Source: Open-Meteo wind · updated 26 Oct, 00:28 GMT-5

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Tennie and Laura Wreck

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

Best time: Mid-late summer in settled weather only.

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, 13% of days have historically been favorable, wind has typically been 20 knots
  2. February, 9% of days have historically been favorable, wind has typically been 20 knots
  3. March, 12% of days have historically been favorable, wind has typically been 20 knots
  4. April, 19% of days have historically been favorable, wind has typically been 19 knots
  5. May, 31% of days have historically been favorable, wind has typically been 16 knots
  6. June, 36% of days have historically been favorable, wind has typically been 16 knots
  7. July, 49% of days have historically been favorable, wind has typically been 14 knots, historically most favorable
  8. August, 37% of days have historically been favorable, wind has typically been 16 knots
  9. September, 38% of days have historically been favorable, wind has typically been 15 knots
  10. October, 8% of days have historically been favorable, wind has typically been 20 knots
  11. November, 8% of days have historically been favorable, wind has typically been 20 knots
  12. December, 9% of days have historically been favorable, wind has typically been 21 knots

July 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 tiny scow schooner Tennie and Laura foundered in a sudden 1903 storm while hauling lumber from Muskegon to Milwaukee; the captain survived but his crewman drowned. Found during the 1998-2000 search for the fish tug Linda E, she sits intact in 325 feet of water nine miles southeast of Port Washington, a rare surviving example of the Great Lakes scow schooner type. Only highly experienced technical teams dive her — for everyone else she remains an archaeological time capsule.

boatwreck

Extreme depth 325 ft — among the deepest dived wrecks in Wisconsin waters

Very long cold decompression

Rarely visited; no fixed mooring

Loss-of-life site (one sailor drowned in 1903)

Reviews

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