The document summarizes the history and development of Marine Protected Areas (MPAs) in UK waters over the past 30 years. It discusses the evolution from individual sites in the 1980s and 1990s to developing networks of protected areas. The UK now has 96 Special Areas of Conservation designating 5.6% of UK seas, and new Marine Conservation Zones and national MPAs have been designated since 2013. Management of MPAs is challenging and often contentious due to pressures from fisheries. While progress has been made in scale, the designated areas may have limited effectiveness due to industry lobbying and complex feature-based management approaches.