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SMS Cormoran, wreck

The SMS Cormoran, a WWI wreck, rests at a depth of 130 feet in the waters of Guam, United States. The wreck lies on its starboard side next to the Tokai Maru, a vessel that sank in 1943. This dive site offers a truly unique experience, as it is the only place in the world where divers can explore wrecks from both World Wars in a single dive.

Divers visiting this site will be captivated by the abundant marine life and stunning underwater scenery. The SMS Cormoran serves as a fantastic macro diving spot, adorned with vibrant tunicates and various types of coral colonies, including whip, hard, and soft corals. The site is a haven for fascinating creatures such as moray eels, octopuses, and rays.

To locate the SMS Cormoran, divers should follow the midsection hull of the Tokai Maru until they come across the wreckage at a depth of 80 feet. The initial part of the Cormoran they will encounter is the aft steering deck house, with the intact hull further enticing exploration. It is recommended to begin the dive at the stern and gradually make your way towards the bow.

With a visibility of 13 meters and a maximum depth of 31 meters, this dive is suitable for advanced and expert divers. The exceptional diving conditions, coupled with the historical significance of the wrecks, make this site a must-visit for diving enthusiasts seeking a truly unforgettable experience.

Diving Conditions Score for SMS Cormoran, wreck

6.3
Above Average

Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for SMS Cormoran, wreck

Depth

31m

Visibility

13m

Experience Level

advanced
expert

Weather Conditions for SMS Cormoran, wreck

Wave Height

0.88m

Wind Speed

19.1 m/s

Water Temp

29.7°C

Visibility

7.84km

Cloud Cover

72%

Wave Period

6.2s

Air Temperature

28.7°C

Precipitation

0.2 mm

Detailed 7-Day Diving Forecast for SMS Cormoran, wreck
Alpha

Dive Score Chart for SMS Cormoran, wreck

Best time to dive: 17:00 with score 7.646406870229006/10. Water conditions: Waves 0.78m, Wind 7.3 m/s.Best night dive time: 20:00 with score 7.428225252525252/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at SMS Cormoran, wreck: 06:00
Sunset at SMS Cormoran, wreck: 18:00

Optimal diving conditions at SMS Cormoran, wreck are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.

🌞
Best Overall
17:00

Score: 7.6/10
Waves: 0.78m (6.55s), Wind: 7.3 m/s

🌙
Best Night
20:00

Score: 7.4/10
Waves: 0.74m, Wind: 5.4 m/s

Seasonal Analysis for SMS Cormoran, wreck
Alpha

Historical patterns and best seasons for diving at SMS Cormoran, wreck

The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.

Monthly Dive Score Analysis - Seasonal Diving Conditions

Higher values indicate better diving conditions

Seasonal DiveScore Chart

This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.

Higher values indicate better diving conditions

Best Season for SMS Cormoran, wreck

Winter

Avg. Score: 9.4/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for SMS Cormoran, wreck

January
Score: 9.5
February
Score: 9.4
November
Score: 9.4

Ideal Conditions for SMS Cormoran, wreck

Water Temp

Thermometer Emoji

27.6°C / 81.7°F

May

Visibility

Telescope Emoji

11.2m / 36.7ft

November

Wave Height

Wave Emoji

1.4m / 4.6ft

September

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for SMS Cormoran, wreck

SMS Cormoran, wreck shows typical northern hemisphere patterns with May being the warmest month (27.6°C) and January the coldest (22.7°C). The calmest conditions typically occur in September with average wave heights of 1.4m and wave periods of 8.0s. The most comfortable wave conditions are in September with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). February is usually the driest month with 1.0mm of precipitation. For beginners, the best time to visit would be during September to November, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 20, 2026

Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.

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