Training for a 78km solo open water swim: a case report. An Italian group has accompanied a swimmer in preparation for the crossing of the Adriatic Sea by Italy to Albania. In the 32 weeks before swimming over 78 km all workouts were registered.
The athlete completed between 15 to 70 swimming kilometers per week. All details of the preparation can be found at www.ncbi.nlm.nih.gov/pubmed/27054351