Seagrass Dataset from Science Under Sail. There’s a csv with the raw data, and an ArcGIS metadata file.
You can also access the arcgis data here if you have access to arcgis:
https://www.arcgis.com/home/item.html?id=f398b8b0b6184628acc264d5bf8b081b
And you can view the layers here if you don’t:
https://m.arcgis.com/home/item.html?id=7ecacff0dcf84cf68daa97e41fb09a76