Swedish owner Concordia Maritime has hailed a "fantastic turn-out" for its second coastal clean-up drive in the Gothenburg archipelago.
More than 100 people gathered to collect rubbish from the shoreline and filled numerous sacks to the brim on Saturday, it said.
The event was organised by the tanker company in collaboration with the Keep Sweden Tidy Foundation.
Volunteers binned plastic bags, packaging, petrol cans, old fishing nets and ropes - and even shoes.
Hard plastic was sorted and separated from other waste to be used for the Ocean Project being run by the Swedish Sea Rescue Society.
The recycled material is used to produce small sailing boats.
“The purpose of this initiative is to raise awareness about the importance of keeping our oceans clean and also to remove debris from a stretch of the coastline," said Concordia's Ola Helgesson.
"Thanks to the enthusiasm and commitment of all the participants at our clean-up day, we filled 180 bags and 20 sacks with rubbish. We hope that all those who took part in this event will help us to generate and spread more interest in keeping our oceans clean.”
Last year, Concordia teamed up with Swedish scientists to use its ships to measure the amount of microplastics in the oceans.
