This dataset provides over 400 minutes of unedited acoustic recordings of wild short-beaked common dolphins (Delphinus delphis) observed in the northern Bay of Biscay, France, from 2020 to 2022 during the DOLPHINFREE project. It includes recordings captured with a high-quality hydrophone and a four-hydrophone array, alongside visual observations during various behavioral states such as foraging, traveling, socializing, and boat attraction. This resource offers valuable insights into the acoustic repertoire and spatial movements of these animals, supporting studies on their ecology, social behavior, and responses to human activity. Please read the README.md for usage information.