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Map of Christina Nilsson Wreck
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IntermediateBoat entry

Christina Nilsson Wreck

Wisconsin, United States
Open Water suggestedVery shallow (3-4.6 m) site between reefs on the north side of Baileys Harbor, fully exposed to Lake Michigan weather3–5 m (10–15 ft) depthBoat entry

Boat dive — see Entry & access.

Christina Nilsson Wreck at a glance

Christina Nilsson Wreck is an intermediate boat dive site in Wisconsin, United States with depths of 3–4.6 m (10–15 ft). Typically most favorable Jul · from 3 years of archive data. Check the latest conditions and entry details before you go.

Favorable window now· until 18:00 · sunset 17:46

Wind forecast for this hour · 13:00 · run 13 h ago
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Tap a factor for its source and model point

Site hazards: Very shallow (3-4.6 m) site between reefs on the north side of Baileys Harbor, fully exposed to Lake Michigan weather

Read the full hazards ↓

Dive windows this week

Lightest wind: Thu
Sun8:00–18:00 favorable

7 kn wind (7 kn wind)

Mon8:00–18:00 favorable

10 kn wind (10 kn wind)

Tue8:00–18:00 favorable

9 kn wind (9 kn wind)

Wed11:00–17:00 moderate

16 kn wind (16 kn wind)

Thu8:00–18:00 favorable

6 kn wind (6 kn wind)

Fri8:00–18:00 favorable

10 kn wind (10 kn wind)

Sat8:00–17:00 moderate

12 kn wind (12 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 6:47 · Sunrise 7:17 · Sunset 17:46 · some windows run past sunset

Source: Open-Meteo wind · updated 25 Oct, 00:21 GMT-5

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Christina Nilsson 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: Summer, when Lake Michigan is calmest and the Wisconsin Historical Society's seasonal mooring buoy is deployed. Pick calm, low-wind days — at 3-4.6 m depth the site is heavily affected by surface chop.

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, 57% of days have historically been favorable, wind has typically been 13 knots
  2. February, 52% of days have historically been favorable, wind has typically been 14 knots
  3. March, 43% of days have historically been favorable, wind has typically been 14 knots
  4. April, 44% of days have historically been favorable, wind has typically been 14 knots
  5. May, 74% of days have historically been favorable, wind has typically been 12 knots
  6. June, 71% of days have historically been favorable, wind has typically been 12 knots
  7. July, 86% of days have historically been favorable, wind has typically been 10 knots, historically most favorable
  8. August, 85% of days have historically been favorable, wind has typically been 11 knots
  9. September, 83% of days have historically been favorable, wind has typically been 11 knots
  10. October, 59% of days have historically been favorable, wind has typically been 14 knots
  11. November, 50% of days have historically been favorable, wind has typically been 14 knots
  12. December, 56% of days have historically been favorable, wind has typically been 14 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 recorded at this site

No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.

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

schooner that sank in Lake Michigan

wreck

Very shallow (3-4.6 m) site between reefs on the north side of Baileys Harbor, fully exposed to Lake Michigan weather — wave surge in onshore winds can make it undiveable; watch for recreational boat traffic; cold freshwater year-round (drysuit or thick wetsuit advised). The wreck is on the National Register of Historic Places — removing or disturbing artifacts is illegal. Do not anchor on the wreck; use the mooring buoy.

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