In 2010, Sascha Nolden discovered Hochstetter's archive in Basel, Switzerland, and began progressively cataloging and publishing it. The archive includes Hochstetter's field diaries which contain the raw data from his compass survey of Lake Rotomahana and the Pink and White Terraces. These diaries include bearings which, when reverse-engineered, delivered the geographical coordinates of the Pink and White Terrace locations. The Hochstetter diaries have been published in two research papers by Bunn and Nolden. This research led Bunn and Nolden to report that, contrary to the prevailing belief, the Pink and White Terraces were not submerged beneath Lake Rotomahana: they are instead buried underground along the shoreline, based on coordinates in an article published in the "Journal of the Royal Society of New Zealand", and could potentially be excavated and restored to public view. Any such excavation, however, would need the permission of the Maori tribe which owns the land. Bunn released a summary and supporting image gallery of the new 2018 findings. Later, he explained the release of the new findings.