Lesson plan
Exploris One
Exploris One is an ice-strengthened expedition cruise ship built by Rauma shipyard in Finland. She was launched in 1989 as MS Delfin Clipper and was the first luxury cruise vessel built at this shipyard. Over the period 1989 to 2001 she operated under several names before being acquired by Society Expeditions, who operated her from 2001 to 2007 under the names World Discoverer and World Adventurer. In 2007, she was purchased by Silversea Cruises and after a major refit was renamed Prince Albert II, becoming the first expedition cruise vessel in the Silversea line. In April 2011, she was renamed Silver Explorer. After 15 years in the Silversea fleet, Silver Explorer was sold to Exploris Cruises and Expeditions in January 2022. She was transferred to Exploris in September 2023 and began sailings as Exploris One in December 2023. Exploris was liquidated in November 2025 and the ship was sold at auction to the Nordic Group. In February 2026, Heritage Expeditions, an expedition cruise company operating from Christchurch, New Zealand, announced that the vessel would join their expedition cruise fleet and be renamed as Heritage Discoverer, with voyages commencing in May 2027.
Article summary
Exploris One is an ice-strengthened expedition cruise ship built by Rauma shipyard in Finland. She was launched in 1989 as MS Delfin Clipper and was the first luxury cruise vessel built at this shipyard. Over the period 1989 to 2001 she operated under several names before being acquired by Society Expeditions, who operated her from 2001 to 2007 under the names World Discoverer and World Adventurer. In 2007, she was purchased by Silversea Cruises and after a major refit was renamed Prince Albert II, becoming the first expedition cruise vessel in the Silversea line. In April 2011, she was renamed Silver Explorer. After 15 years in the Silversea fleet, Silver Explorer was sold to Exploris Cruises and Expeditions in January 2022. She was transferred to Exploris in September 2023 and began sailings as Exploris One in December 2023. Exploris was liquidated in November 2025 and the ship was sold at auction to the Nordic Group. In February 2026, Heritage Expeditions, an expedition cruise company operating from Christchurch, New Zealand, announced that the vessel would join their expedition cruise fleet and be renamed as Heritage Discoverer, with voyages commencing in May 2027.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.