castawayA person who is stranded in a remote place, especially due to a shipwreck
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A person who has been shipwrecked and stranded in an isolated place"After the shipwreck, he found himself a castaway on a deserted island."
expeditionA journey undertaken by a group of people with a particular purpose, especially that of exploration
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A journey for a specific purpose, such as exploration"The team is preparing for their expedition to the Antarctic."
shipwreckThe destruction of a ship at sea by sinking or breaking up
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The destruction of a ship at sea"The treasure hunters are searching for the site of the ancient shipwreck."
rescueThe act of saving someone from a dangerous or distressing situation
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To save someone from a dangerous or distressing situation"The climbers were rescued from the mountain after a treacherous snow storm."
voyageA long journey involving travel by sea or in space
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A long journey, especially by ship"The voyage across the Atlantic took several weeks."