These data sets are the result of five trips using Sonic Kayaks to collect data as part of the ACTION Project. The sampling was carried out in the Penryn river, around Falmouth docks and the Helford estuary. A variety of sensors were used: Thermometer recording water temperature. PMS7003 air pollution sensor recording a variety of particulate sizes. DolphinEar DE PRO hydrophone for detecting noise pollution and biological signals. A custom turbidity sensor to detect changes in water cloudiness. The sound has been processed in this data set in order to classify sound sources from different boat engines. More information, source code and open hardware plans for construction can be found here.