10 Wire Flyer sections collected in the Cape Basin during March of 2023. Each Wire Flyer dive profiles over a 400-m depth range between 0-800 m in the water column. Transects span between 30-120 km over a duration of 5-20 hours. Four files are associated with each Wire Flyer dive: one file with all measured quantities interpolated to the same timestamp (all_4_Hz) and one for each sensor recording data (ecopuck, optode, and CTD). The all_4_Hz.csv files are the best version of the data after processing, while the csv files for each sensor contain raw data. For more information on the Wire Flyer, see Roman et al. (2019). Data are in CSV format. Time is in seconds since January 1, 1970, 00:00:00 UTC (unix timestamp).