Deep Sea Explorers is a subtheme of LEGO City introduced in 2015 that features sets based around deep sea exploration. The sets featured underwater scenery, sea creatures and treasures and typically included minifigure divers. The 2020 wave is licensed by National Geographic.
Deep Sea Explorers consists of 10 sets that ran from 2015 to 2020. As of today,
60266 Ocean Exploration Ship is the most valuable Deep Sea Explorers set with an estimated new/factory sealed value of $190.
Summary
City Deep Sea Explorers Deep Sea Starter Set set 60091 was released on May 18, 2015, retailing for $10, it has since been retired. New, unopened sets are valued at $28, used ones can be found for $7.
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