Treasure, where the original owner is usually no longer living or cannot be traced, the estate or descendants may still have a claim to the treasure, although the finder will often have a greater claim on the full amount of the treasure. Historical treasures may also be included in this category.

There are several international universities around the world that offer specific courses of study in international maritime law. In the United States the Tulane Law School in New Orleans is the only school offering an LLM in Admiralty.

Maritime law applies to pleasure craft such as yachts, sailboats and other types of recreational boats, not just to cargo ships and ocean vessels. Often maritime attorneys are involved in settling lawsuits due to accidents, collisions and personal injury on these types of boats.