The book “To the Bottom of the Sea with Waving Flags!” is a sharp and well focused view of the research of marine archeology carried out by the Estonian Maritime Museum. For many decades, the museum has done field work on the high seas, searching, finding and exploring the sunken ships within the local sea area. Because our small country is located right at the crossroads of historical and modern sea journeys, many wrecks have been found. Also the merciless flame of many sea battles has burnt here, bringing hundreds and hundreds of different vessels to the seabed with thousands of seamen with them. Going to their first research trip 32 years ago, the future scientists didn’t know of any shipwreck locations. What was their location and what happened to them, was still waiting to be clarified. The developments in underwater surveys of Estonian Baltic Sea neighbors Finns, Swedes, Danes and Germans were taken as a model. Today, the Estonian Maritime Museum is one of the few museums in the world, possibly the only one that in such a long period of time, without interruption, from year to year, is working on the high seas. All of this has been and will be done with the help of our best co-partners with the aim of researching the maritime history. Many of the vessels that have been found, of which some stories are also told in this book, have been the national pride of their owner countries. The book has another meaning that educated and professional sailors have kept in mind. Almost all of the sunken ships have taken with them the sailors who fulfilled their duties to the last minute, a memorial worthy of recording, even if anonymously, through the stories of these ships. The seabed has decade’s worth of secrets to hide. Each wreck there represents yet another page in the exciting book of maritime history.