Hunga Tonga - Hunga Ha’apai (HTHH), one of 22 volcanoes in the waters around the Kingdom of Tonga, erupted violently on 15th January 2022. The survey team heads to Tonga onboard RV Tangaroa, to study the changes that have affected the area. (Credits: NIWA-Nippon Foundation TESMaP / Rebekah Parsons-King)