Meant to be a simulation of a deep-sea exploration, this requires that another instructional activity be completed first. In that instructional activity, titled "Animals of the Lost City," marine biology buffs construct murals of benthic communities. In this instructional activity, the organisms are covered with sticky-notes, to be removed systematically by other learners as they imagine they are using an autonomous underwater vehicle. Find the preceding instructional activity via the Lesson Planet website or your own internet search.