The North Caesarea 1 shipwreck, briefly explored in the 1980s, is one of the few hulls of the Hellenistic and early Imperial periods excavated in the Eastern Mediterranean. This investigation relies on the meticulous re-examination of primary excavation data to help answer some questions regarding this hull that probably belonged to a large vessel.

Numerous transport stirrup jars have been found at the site of Pefkakia. Most were manufactured in Crete with some from the Greek mainland. There were also at least two Canaanite jars from the Carmel coast. These finds and the first results of petrographic analysis attest to the site's role as a major Aegean harbour.

Identification of the origins of maritime-traded porcelain, though key to unravelling ancient production and trade dynamics, remains challenging. The authors present a pioneering micro-provenance analysis of Dehua-style porcelain from the late-twelfth-century Nanhai I shipwreck, recovered from the South China Sea. By pinpointing the origins of porcelain subtypes, including those bearing ink inscriptions, this study provides greater nuance in understanding spatial patterns of production and the impact of buyer/seller choice in maritime trade. The findings further highlight the effectiveness of portable x-ray fluorescence as a high-precision provenancing analysis and offer insights into porcelain production timelines in south-east China.

Salt works along the Yucatan coasts of Mexico and Belize provide a record of salt production for inland trade during the height of Late Classic Maya civilisation (AD 550–800). At the Paynes Creek Salt Works in Belize, production focused on the creation of salt cakes by boiling brine in pots supported over fires in dedicated salt kitchens. Underwater excavations at the Early Classic (AD 250–550) site of Jay-yi Nah now indicate there was a longer and evolving tradition of salt making in the area, one that initially employed large, incurved bowls to meet local or down-the-line trade needs before inland demand for salt soared.

In 2023, during the underwater archaeological documentation of the port of Puteoli, a submerged Nabataean temple was located and partially investigated. The authors present the first results of these new research activities, including a reconstruction of part of the building and details of two altars and some inscribed slabs.

Throughout the medieval period, thousands of ships plied their trade around England's coasts. History documents numerous lost ships, and more would have sunk without record, yet very few wrecks dating between the tenth and fifteenth centuries AD have previously been discovered in English waters. The author reports on one of the first of such finds—the wreck of a clinker-built sailing vessel, dated to c. AD 1250, that was carrying a cargo of Purbeck stone. Examination of the ship and its cargo reveals new insights into shipping and the Purbeck stone trade in the thirteenth century.

This project investigates the prehistoric coastal site of Kalba on the Gulf of Oman in the context of exchange networks between maritime waterways and land-based caravan routes on the south-eastern Arabian Peninsula. In addition to favourable environmental conditions, raw-material procurement strategies were important for the economy of this multi-crafting community.

Sedentary occupation of the southern Levantine coast spans from the Pre-Pottery Neolithic C to the Early Bronze Age Ib phase (c. 7000–3100 BC). Sites dating to the Early Pottery Neolithic (c. 6400–5500 BC) are scarce, however, potentially reflecting the effects of the 8.2ka climatic event. Here, the authors present the investigations at the submerged site of Habonim North off the Carmel Coast. Typological and radiocarbon dating indicate an Early Pottery Neolithic occupation and evidence for continuity of subsistence and economic strategies with both earlier and later Neolithic cultures. The results indicate the resilience of coastal communities in the face of significant climatic uncertainty and contribute to understanding human responses to environmental change.

This terrestrial and underwater archaeological research project around a Mediterranean islet identifies that it was a commercial centre during the fifth century AD. The results shed light on Late Roman island occupation dynamics.

Archaeological investigation of Circum-Alpine lake, or pile, dwellings has afforded unprecedented insight into Neolithic and Bronze Age societies. The discovery in 1989 of a submerged settlement near Rome added an early (eighth millennium BP) geographical outlier to this distribution. Two decades of excavation at La Marmotta have identified more than a dozen dwellings and an enormous assemblage of organic remains. Here, the authors present an overview of the textiles, basketry and cordage recovered, and the tools used to manufacture them. The assemblage paints a more complete picture of the technological expertise of Neolithic societies and their ability to exploit and process plant materials to produce a wide range of crafts.

The Intergovernmental Panel on Climate Change has documented wide-ranging changes to the world's coasts and oceans, with significant further change predicted. Impacts on coastal and underwater heritage sites, however, remain relatively poorly understood. The authors draw on 30 years of research into coastal and underwater archaeological sites to highlight some of the interrelated processes of deterioration and damage. Emphasising the need for closer collaboration between, on one hand, archaeologists and cultural resource managers and, on the other, climate and marine scientists, this article also discusses research from other disciplines that informs understanding of the complexity of the interaction of natural and anthropogenic processes and their impacts on cultural heritage.