The archaeological evaluation (WA 2014) identified a concentration of Roman remains in the area of the proposed surf lake. With the agreement of the SGC AHEO, a c. 1.5ha archaeological excavation area was opened on the proposed site of the surf lake. This was divided into three land parcels by extant field boundaries, referred to as Area 1 (c. 0.8ha), Area 2 (c. 0.1ha) and Area 3 (0. 4ha) Between April and July 2018, Cotswold Archaeology carried out an archaeological excavation over 1.5ha at The Wave, Washingpool Farm/Over Court Farm, Over, South Gloucestershire. A natural channel contained a sequence of alluvial deposits, identified as being part of the Wentlooge sequence. The earliest archaeological features comprised Middle to Late Iron Age structures, possibly relating to seasonal occupation of the saltmarsh. Prehistoric pottery included fabrics of Middle to Late Iron Age date; Three radiocarbon dates provide evidence for activity at the site between the 360s and 170s cal. BC. Roman features comprised rectilinear enclosures of 1st to 2nd century date; activity intensified from the 2nd century AD onwards, with the development of an extensive enclosure system. Pottery of 2nd century date onwards was present in significant quantities, with some sherds indicating activity into the later 4th century AD; many unstratified late 3rd and 4th century coins and metal artefacts were recovered during metal detection. Two burials were identified, and radiocarbon dates indicate that at least one had been interred during the early 5th century AD at the earliest. An emphasis on cattle in the animal bone assemblage may indicate a partial focus on cattle husbandry although a mixed economy is indicated by the recovery of charred cereal remains, and the identification of a grain drying oven. Late Roman features were sealed by further alluvium, which had been cut by a medieval ditch and a series of medieval plough furrows. A post-medieval date boundary ditch was also found.