The steel motor vessel Gunnaren was launched from the Gothenburg yard of A/B Lindholmen Motala (Yard No 931) on 11th February 1930. She 354.1′ x 50.1′ x 21.7′ and her tonnage was 3229 gross tons, 1779 net tons. She was powered by 4S CSA 12 cylinder diesel engines by A/B Gotaverken, Gothenburg delivering 543 net horse power. She was ordered by Rederi A/B Transatlantic of Gothenburg and operated for this Swedish company for her short five year career before she ran aground and was lost on Swona in 1935.
On 19th August 1935 she was en route from New York to Gothenburg with a general cargo under the command of Captain Einar Reich who had a crew of thirty four men aboard. As she passed through the treacherous Pentland Firth she was enveloped in a thick fog reducing visibility dramatically and, with the combination of the fog and the severe tidal streams of the firth, she ran aground at Tarf Tail, Swona and stuck fast. At 6am Wick Radio picked up the ship’s distress messages which reported the ship ashore with 12 feet of water in the hold and a ten degree list to starboard. Wick then called out the Longhope lifeboat Thomas McCunn which was quickly launched reaching the scene at 8:15am. When the lifeboat reached Gunnaren the weather was calm meaning the crew were in no immediate danger. The lifeboat took off forty one bags of Swedish mail as a precaution but the crew remained aboard hoping that she could be easily refloated. After dropping off the mail the lifeboat returned to the wreck site stood by. Meanwhile a call was sent to the Swedish owners by the captain to dispatch tugs to pull her off.