HMS Coreolanus

English trawler near Novigrad

Am Beginn der Galerie (Richtung Bug) angekommen, September 2005Alles ist über und über bewachsen, September 2005Das Heck, September 2005Treppenabgang am Heck, September 2005Das Heck in der Nahaufnahme, September 2005
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45° 19' 11" N, 13° 23' 25" E
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Data & Description



advanced diver

Type of vessel:
Trawler of the Shakespeare class

Port of registry:

~60 meters

8 meters


May 5th 1945

Reason sunk:
accumulated on a sea mine

6 miles before Novigrad/Cittanova

Boat trip:
~45 minutes from Rovinj

Minimum depth:
18 meters

Maximum depth:
30 meters

Local dive center:
Diving Center Petra

Route planner:
Google Maps


Das Wetter für


Book recommendations:

Teti in Vis Island - New Art to Media Underwater Waterproof 3D Dive Site Mapa

Vassilios in Vis Island - New Art to Media Underwater Waterproof 3D Dive Site Mapa

Dive Atlas of the World: An Illustrated Reference to the Best Sitesa

Top dive sites of the worlda

Description dive spot:
The Coreolanus was a war fishing boat, so a converted civilian ship, which took over several tasks in the British Navy. As an example the ship was equipped as a mine-clearer and was involved among other communication tasks in various operations during the Second World War.
The Coreolanus ran on May 5, 1945 on a mine that ripped open the ship on the starboard side just before the bow. The hole is still recognizable today. There is no precise information what mission the ship lead to the Yugoslav coast and also about victim numbers. From Rovinj, the center of the diving industry in Istria, it takes 45 minutes to the wreck on a quick dive boat.
The buoy line is now attached to the foredeck. Mostly the visibility is good and the current weak, you can already make a small overall impression of the wreck on the way down. Since the Coreolanus is not very large and lies in a moderate depth, you also have time as an air diver to see the complete ship. Nitrox is still highly recommended. You should not miss the two guns on the bow, but especially the two galleries and of course the rear with the screw and the rudder. The superstructures with the gun amidships are worth a detailed and cozy look. In some places (except for the previously mentioned galleries) you should be able to penetrate deeper into the wreck, which is not very recommendable.
The hole caused by the mine, as well as the rudder and screw are worthwhile only if the visibility around the wreck and towards the seabed is good. Without Nitrox not recommended, as even a short trip down costs a lot of bottom time which you can spend far more meaningful up the wreck.

Contributed by:
Martin Sebald, Alexander Schönleber

Last content update:



¹ Dive site rating: The rating is a five star rating ("poor" to "outstanding") and based on the dive site itself and on the comparison of all dive sites in the area. It also reflects the personal opinion and preference of the contributor.
² Dive site difficulty: The difficulty rating is a five star rating ("beginner" to "technical diver") and based on the personal opinion of the contributor and maybe also on the experience the contributor had when diving this site. We take absolutly no responsibility for diving accidents or anything else. Please always be a safe diver and dive your level of experience and please also be aware of local laws and regulations there might be.
a Amazon affiliate link: If you order we get a very little commision. Important: The price on Amazon does not change for you! It is just a bonus which we receive for the recommendation.

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