Dunes Operation Center, LLC. Share: Recreation Dunes Operation Center, LLC. Visit Website 110 Clear Lake Boulevard La Porte, IN 46350 (219) 861-7122 About Map About The Dunes Volleyball Center features eight indoor tournament volleyball courts with ten practice courts. Other features include a pro shop, concession stand, basketball courts, and batting cages. What's Nearby? Distance: 5 10 15 20 25 50 mi.