How to split 3000' of line?

Another odd question from me… A friend of mine and I went in together on 3000’ of kite line. We need to divide it in half, but are having trouble working out quite how to split something that’s a kilometer long.

The line is sensitive to abrasion, so avoiding sources of abrasion would be good. The ideal would be to find a +/- 1500’ long grassy field and divide it there, but I’m not sure if there’s a more clever way to pull that off.

Thoughts, oh Flutherers?