Requires Esquie's swim underwater ability to reach the location. From the Entrance Expedition Flag, head down the path and take the path directly to the left of the slope you came from. Grapple to the building, head down the path and pick up the Music Record on the right side of the field
Requires underwater swimming. From Entrance flag: down path → left of slope → grapple to building → record on right side of field.
Information sourced from community resources