This data set is part of the Sonic Kayak project https://fo.am/activities/kayaks/ A survey was performed online in June 2020, to gather people's opinions on different environmental data sonification approaches, and test whether people could tell what was happening in the data just from the sounds they heard. This was designed to inform our choices of which sonifications to use, rather than as a scientific study of sonification approaches. A total of 49 people completed the survey. The data presented is in its raw form.