A major tributary of Pensacola Bay, the Blackwater River flows through the pine forests and fertile uplands of Santa Rosa and Okaloosa Counties. Historically, commerce along the river included shipyards, brick kilns, and lumber mills, all of which used the river for transport of supplies and products. The remains of many of the watercraft engaged in these industries lie hidden in the dark water, some of which have been archaeologically investigated. This lecture describes these vessels, ranging from lumber schooners to steam tugs to snapper smacks.