The Enhancing Cetacean Habitat and Observation (ECHO) Program was created in 2014. It has ever since gathered a broad and diverse group of advisors, under the leadership of the port authority to protect the endangered southern resident killer whales. In order to do so, the ECHO program has measured the noise levels of more than 10 000 ships in the Salish Sea. Over 5000 vessels have voluntarily slowed down or detoured to protect the feeding area of this cetacean from underwater noise. The program also offered resources to help mariners to raise awareness of the effects ships can have on these animals. The program has produced in this period several documents including a “Mariner’s Guide to Whales, Dolphins, Porpoises of Wester Canada”, the “Whales in our Waters tutorial” or the app WhaleReport Alert System, besides yearly reports and scientific papers.