The inland underwater cultural heritage is in great peril. The main causes of its destruction are new construction work on the shoreline, dredging to accommodate shipping, and increased wave erosion in the shore area as the protective reeds are removed. Underwater sites such as the lacustrine settlements in Switzerland such be of interest to curators; preserved as assemblages, more information is available about individual artifacts. Underwater strata are more clearly demarcated than on land; hence dating tends to be more precise. Preserving organic remains <i>in situ</i> for purposes of display is not feasible; authentic replication is justifiable. Some recent advancements in archaeological techniques are described. -- AATA