The emergence of new maritime activities, such as the search for mines with AUVs or wind turbine monitoring, requires more and more long-range, high-speed communications. However, in the underwater environment, no conventional wireless communication means allow this. We propose a data muling solution, i.e. the use of mobile agents spread between the data source and the data destination. These agents communicate using short range wireless communication and carry the data in internal memory from one point to another. By doing this, we show we can significantly increase the throughput of longrange communication. In this article, we will mainly focus in a 2D plan and the study of theoretical gain of this method and expose a example where data muling is interesting. In addition, we introduce a metric to choose the characteristic quantities for designing and implementing such a solution.