The equipment to be tested included a manned submersible (NOT full ocean depth—depth achieved not available) and two deep-sea landers, all capable of diving to depths of 10,000 meters, as well as a ROV that can go to 4,500 meters. They took photographs and obtained samples from the trench, including water, sediment, macro-organisms and micro-organisms. "If we can take photos of fish more than 8,145 meters under water," said Cui, "we will break the current world record. We will test our new equipment including the landing devices. They are second generation. The first generation could only take samples in one spot per dive, but this new second generation can take samples at different depths in one dive. We also tested the ultra short baseline acoustic positioning system on the manned submersible, the future of underwater navigation."