The predominant view of Pacific prehistory holds that the Pacific islands were isolated in most periods and that isolation is the key to their development. We question the development-inisolation model and present data from the Arawe Islands, West New Britain to show that, although close to large land masses, the sea has linked these islands into a wider world in the late prehistoric period. We present ethnohistorical data on settlement, subsistence and trade which shows the nature of these links and discuss how far sea links have affected the use of the land. If the way in which land is used is partly determined by the sea, we should think in terms of seascape, as well as landscape, extending the range of the latter term. We argue further that the key feature of all periods of Pacific prehistory is connectivity by sea and that in the process of colonisation, not only were par-