The Antikythera Wreck, discovered off the coast of the Greek island of Antikythera, contains the remains of a ship that sank around 60 BC. Among its findings is the Antikythera Mechanism, an ancient analog computer used for astronomical calculations.

Side-scan sonar is a widely used technology in underwater archaeology. It emits sound waves to create detailed images of the seafloor, helping archaeologists identify potential shipwreck sites and other underwater features.

The Thonis-Heracleion Project, led by French archaeologist Franck Goddio, uncovered the submerged ruins of Thonis-Heracleion, an ancient Egyptian city that was once a major port and religious center.

Paleolithic Underwater Sites are archaeological sites that contain evidence of human occupation during the Paleolithic era, often found submerged due to sea-level changes.

The Uluburun Shipwreck, discovered off the coast of Turkey, contained a wealth of artifacts, including amphorae, bronze ingots, and jewelry, providing insights into ancient trade routes and maritime activities.

Conservation Archaeology refers to the specialized techniques and methods used to preserve and conserve artifacts recovered from underwater archaeological sites, ensuring their long-term preservation and study.

The Vasa, a Swedish warship that sank on its maiden voyage in 1628, was discovered and salvaged in the 1960s. It is now preserved in a museum in Stockholm, Sweden.

Extreme pressure is a significant challenge for underwater archaeologists working at deep-sea sites. The immense pressure at these depths can affect equipment, limit diving operations, and impact the preservation of artifacts.

Atlit Yam, located off the coast of Israel, is an underwater archaeological site that contains the remains of a Neolithic village, providing insights into early human settlements and maritime activities.

Ancient Harbors are underwater archaeological sites that contain the remains of ancient harbors, including submerged quays, docks, and warehouses, providing insights into maritime trade and transportation.

The Port Royal Project, led by underwater archaeologist Dr. David M. Pendergast, uncovered the submerged ruins of Port Royal, Jamaica, providing insights into the city's history and the impact of the 1692 earthquake.

Underwater Speleology is the study of submerged caves, including their geological formations, archaeological remains, and the preservation of artifacts found within them.

The San Jose, a Spanish galleon that sank off the coast of Colombia in 1708, was discovered in 2015. It is believed to contain a treasure trove of gold, silver, and emeralds.

The primary goal of underwater archaeological research is to explore and document submerged cultural heritage, including shipwrecks, ancient harbors, and submerged settlements, to gain insights into past human activities and maritime history.

The Yonaguni Monument, located off the coast of Japan, is a submerged rock formation that some believe is a man-made structure dating back to ancient times. Its origins and purpose remain a subject of debate among archaeologists.