Remotely operated vehicle (ROV) Deep Discoverer images several large igneous boulders covered in bamboo corals encountered during the 2021 North Atlantic Stepping Stones expedition. During the 2023 Shakedown + EXPRESS: Shakedown and West Coast Exploration, we will use our two-bodied ROV system, which includes Deep Discoverer and Seirios, to search for coral and sponge communities and the fascinating marine life that they support.