Of course. If they was not they would be the no treasure hunters.
Archivo General de Indias (General Archive of the Indies - AGI), Seville, Spain: This is a primary source for documents related to Spanish colonial maritime activities, including fleet movements, losses, and cargo manifests across the Caribbean. Researchers have used these records to identify hurricanes and ship losses in the region from the 16th to the 19th centuries. Venezuelan National Archives and Cultural Institutions: Domestic records, research, and data are held by Venezuelan institutions such as the Instituto de Patrimonio Cultural (IPC). These archives contain local reports and findings from survey campaigns. Other Spanish Archives: Additional relevant historical documents can be found in Spain at the Archivo del Museo Naval (Archive of the Naval Museum) in Madrid and the Archivo General de Simancas.
Access to these documents often requires specialized historical and climatological research methods to interpret. Modern policy, often adhering to the UNESCO Convention on the Protection of the Underwater Cultural Heritage (2001), focuses on the archaeological and historical value of shipwrecks rather than just treasure hunting. Documents generally remain the property of the respective governments (Spain, Venezuela, etc.), which dictate the terms of access and recovery.
Its getting harder to access these documents for the purpose of treasure hunting research.
Crow