Indianola Road is being widened in a project that will take up the better part of the next couple years (2010-2011). If you are coming to Ewing Park, from the north, take E14th down to McKinley and take McKinley east to Indianola. Those two streets intersect right by hole 3's basket. Turn right on Indianola and cruise up to the parking lot on the right.
Coming from the south, you should be OK coming up Indianola off of Hwy 69.