The duneland at Barnbougle - at least at the BD part of the property - is significantly narrower than at Bandon. This means that the course is routed in a rather different fashion, with a central clubhouse and each nine being broadly speaking out and back on either side of the clubhouse (there are a couple of holes, the sixth and the twelfth, that don't quite fit this). PD by contrast has a much more complex routing, and turns back on itself more frequently, in order to get to and away from the coastline on multiple occasions. One consequence of this is that I felt BD was a more natural and better walk - the two areas around the third and twelfth greens and 4th/13th tees, and also around the 4th and 11th greens plus the fifth and twelfth tees at PD gave me the impression of walking in a different direction up the same path a little. It's totally justifiable - those are some of the best holes on the golf course. You could argue, and I wouldn't disagree, that the more complicated routing of PD is a strength, in that the greater number of turns gives more variety of wind direction. But I liked the feeling of BD, which has the air of an exploratory walk through the property, more.