Neljas rahvusvaheline Balti seminar toimus 1986. aastal ja seal vaadeldi Läänemere kui kultuurivahendaja mõju.
Contents:
- St. Petersburg, Finland and the Baltic Sea. Max Engman
- Cultural influences in harbour towns transmitted through maritime trade. Reet Naber
- The influence of overseas connections on the folk culture of southeastern Finland. Raimo Päiviö
- Sea routes, land routes, routes of culture. Yrjö Kaukiainen
- On some aspects of cultural and ideological results of trade between England and Prussia at the turn of the 18th and 19th centuries. Walter Stark
- The swedish-speaking people on the coasts of Estonia. Wolter Ehn
- Reflections of overseas connection on North Estonian peasant culture. Gea Troska
- Maritime archaeology in the United States. Paul F. Johnston
- Maritime archaeology in Gdansk. Przemyslav Smolarek
- The first two decades of underwater archaeology in Britain - a personal view. David J. Lyon
- HMS Kronan. Lars Einarsson