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Alger Underwater Preserve & Munising · United States · Wreck · Freshwater

Herman H. Hettler

A boiler and a bath tub among scattered steamer machinery

The Herman H. Hettler is a 72 m (235 ft) wooden steamer, launched in 1890, that slammed into a rock reef in November 1926 while seeking refuge in Munising Harbor. Her boiler, sections of hull and a wide debris field lie between 8 and 12 m (25 and 40 ft).

Also known as Hettler.

Where it is and how deep

Depth profile of Herman H. Hettler: typical dive 8–12 m (26–40 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit8 m12 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

46.4838° N, 86.5997° WPublished position for this site.

The dive

The dive begins on the inner edge of the shoal the steamer struck, where her boiler sits in about 8 m (25 ft) beside parts of the hull. From there a large debris field of mechanical parts, tanks and piping, and even a bath tub, spreads out across the bottom, with the broken wreck lying in 9 to 12 m (30 to 40 ft).

The wreck

Vessel
Herman H. Hettler
Type
Wooden steamer
Length
72 m (236 ft)
Built
1890
Sunk
1926
Cause
Slammed into a rock reef on 23 November 1926 while seeking refuge in Munising Harbor from a severe storm
Lies
Broken up in 9 to 12 m (30 to 40 ft), boiler at about 8 m (25 ft)

Marine life and season

  • Freshwater fish
Month-by-month season rating for Herman H. Hettler
JanFebMarAprMayJunJulAugSepOctNovDec
Off-seasonOff-seasonOff-seasonOff-seasonGoodPrimePrimePrimePrimeFairOff-seasonOff-season

Season follows Alger Underwater Preserve & Munising: The diving season runs from mid-May to early October, and charters need booking in advance.

Dive videos

Herman Hettler Dive Munising, MI 2026 · MahnkeMachine on YouTube

Sources

  1. Alger Underwater Preserve — Michigan Underwater Preserves Council
  2. Dive Shipwrecks at the Alger Underwater Preserve — Munising Visitors Bureau

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