We are getting married in my parents' backyard. The aisle will not be straight, but will have to curve to a degree as the arbor is not directly in front of the doors we will be coming through. I originally thought we would be fine to not have a defined aisle and I'm not worried about sinking heels being an issue (all flats and wedges!) versus fabric being a major trip hazard. Then I found THE dress... It has a train, and I don't really want to drag it all over the grass

What are some 'not too expensive' ideas I can present to my parents?