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SMS Cormoran Wreck

Guam, United States
AOW suggested24–40 m depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

SMS Cormoran Wreck at a glance

SMS Cormoran Wreck is an advanced boat dive site in Guam, United States with depths of 24.4–39.6 m (80–130 ft). Typically most favorable Jun · from 3 years of archive data. Divers commonly see Whip coral gobies/blennies, Soft coral, and Nudibranch. Recent reports put the water around 30°C (86°F). Check the latest conditions and entry details before you go.

Marine model · graded 13h ago
0.9 mwaves — under a meter expected

Tap a factor for its source and model point · Forecast 30°C · seasonal avg 30°C

Site hazards: Deep wreck profile, reduced visibility, harbor traffic, tide/current in the harbor, entanglement/sharp metal, overhead/penetration hazards, and possible decompression/gas-planning pressure if combining both wrecks.

Read the full hazards ↓

Dive windows this week

Best: Sat
Sat7:00–19:00
Sun7:00–19:00
Mon7:00–19:00
Tue7:00–19:00
Wed7:00–10:00
Thu7:00–16:00
Fri—

Favorable windowModerate window— no window

First light 5:49 · Sunrise 6:10 · Sunset 18:25

Source: Open-Meteo marine · model point 11 km from site · graded 13h ago

Forecast only — always assess conditions on site.

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: Whip coral gobies/blennies, Nudibranch, tropical reef fish
Best time: Dive with a local operator during favorable tide/current and harbor-traffic conditions.

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. Jan11%29°C2.2 m
  2. Feb1%28°C2.2 m
  3. Mar32%28°C1.9 m
  4. Apr54%29°C1.5 m
  5. May73%29°C1.5 m
  6. Jun87%30°C1.1 m
  7. Jul78%30°C1.3 m
  8. Aug71%30°C1.3 m
  9. Sep73%30°C1.4 m
  10. Oct55%30°C1.6 m
  11. Nov22%29°C1.8 m
  12. Dec10%29°C2.0 m

June 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.

Marine life seen at this site

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

Species seen here

The underwater calendar

When these animals are most recorded around Micronesia & western Pacific — from open sighting data, not a promise.

Watch the whole year animate on the Migrations map

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated July 2026

Site details

Historic German SMS Cormoran wreck in Apra Harbor, lying beside/under the Tokai Maru wreck pair. It is a deep boat wreck for experienced divers, with unusual WWI/WWII side-by-side context and possible wreck-penetration options only for properly trained divers using a line.

boatwreck

Deep wreck profile, reduced visibility, harbor traffic, tide/current in the harbor, entanglement/sharp metal, overhead/penetration hazards, and possible decompression/gas-planning pressure if combining both wrecks.

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

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