Get involved Education UK System Maritime Archaeology Courses Some of the most interesting courses the NAS runs are our MACs – Maritime Archaeology Courses. Anyone can take these courses and members can gain 5 credits/day toward a qualification if they wish. There are no prerequisites for these courses unless noted in the course documentation. The courses fall into four main categories: Research, Pre-Fieldwork, Fieldwork (practical and classroom-based) and Post-Fieldwork. The courses are run by specialists in their field around the UK and overseas and credits are awarded to members who undertake these courses. See what is available in events