Hydrographic Institute of the Republic of Croatia was sponsor of the „80. Mrduja“ i „ACI Match Race Cup 2011“.
Having recognised the importance of the 80th Mrduja Regatta, the oldest regatta in the Mediterranean, and the largest one on the Croatian Adriatic coast (Mrduja Optimist Cup and „Big Mrduja“), HHI sponsored that event by presenting the winning teams with its valuable publications. HHI also sponsored the gifts for winners of the 25th ACI Match Race Cup, which was held in Split 19 – 23 September 2011.