Karluk is accessible by air and water. Regular and charter flights depart from nearby Kodiak. There are both a state-owned gravel airstrip and a seaplane base at Karluk Lake. Several companies offer service between Kodiak and Karluk if a minimum number of passengers charter a plane. Barge service is available twice a month from Kodiak, and goods are lightered to shore by skiff. Karluk does not have a harbor or docking facilities, so landing crafts are used to bring supplies ashore. Local residents who transport their own supplies will anchor off shore and haul their goods with smaller boats or skiffs. There is about one mile of gravel road in the community.