Trawling has long been regarded as a damaging practice and marine ecologists have lobbied for restrictions. The damage to Underwater Cultural Heritage (UCH), however, has received less attention, though it is just as consequential. This paper looks at UCH damage case studies and the impacts of heritage loss and then suggests steps forward. The case studies in the paper will include the damage to ... [Show full abstract] UCH across the ocean and in the Mediterranean and Black seas. Shipwrecks are as much part of the marine landscape, and thus of importance to ecologists, as they are to the cultural, historical landscape. Yet nothing has been done to seriously limit trawling and protect the underwater cultural landscape and archaeological impacts and data are missing from biological reports on the process. No underwater policies based on cultural preservation have been formulated to manage offshore fishing. There is a preferred policy for in situ preservation in the 2001 UNESCO Convention on the Protection of Underwater Cultural Heritage and some practical measures for site managers to address the threats from bottom trawling but if in situ preservation is to be supported, more needs to be done. Moorings can be added and shipwrecks, if left in place, can become artificial reefs and places for more artisanal, sustainable hook-and-line fishing. However, what is needed most is for states and international fishing organisations to ban bottom trawling at and around identified UCH sites, as has been done for some seamounts. This work is part of the Threats to Our Ocean Heritage project, a UN Decade for Ocean Science approved Action discussing this issue of Trawling, Deep Seabed Mining, and Potentially Polluting Wrecks. The expected results include ocean literacy that increases awareness of the issue to a wider range of stakeholders including international organisations, states, and institutions with the authority to effectuate change.