Hi all. This is a quick advert for an underwater monitoring project. We (International Quiet Ocean Experiment, Global Library of Underwater Biological Sounds WG) are organising a collaborative celebration/study of aquatic (we don't mind how salty or fresh you are) passive acoustic monitoring on World Oceans Day (June 8th, 2023). If you have a hydrophone that will be deployed between June 7th and June 9th and are interested in being involved in ‘WOPAM Day’, or even if you would just like to hear more about it, please contact [email protected] or [email protected] for more information or ask questions on this feed.