The sea ice drifter trajectories and wave measurements during SIDEx2021 (Sea Ice Dynamic Experiment). The trajectories and wave measurements were obtained by instruments deployed on pack ice in the Beaufort Sea.The data are created, stored, and quality checked using the code available at: https://github.com/BrazhnikovDmitry/wave_data_release/blob/main/Arctic_SIDEx2021/create_nc_SIDEx2021.py. More data may be available at this address than in this nc file. Please discuss any question / issue about the present data inside the issue tracker of the github repository.