Extended Data Fig. 3: Annotated drone imagery of Rainbow Beach cliff Middle Rock section.

Drone imagery from the Middle Rock section (see Extended Data Fig. 1) with pedological units, allostratigraphic (dune) packages, OSL and palaeomagnetic sample locations and polarity results. RB44 and RB45 (Extended Data Fig. 1) were collected ~300 m to the NW out of the frame of the image from dune package 1. The samples were collected between 30 cm and 1 m below the contact with Dune Package 2 and yielded a possibly transitional or reversed signal.