I have been on the Blue Ridge Parkway a lot recently, and a lot of cyclists also frequent this road. It is beautiful and mountainous. Also, very curvy, which makes it a very dangerous road with a 45mph speed limit and frequent curves across the mountain range. I usually have no issue with those that decide to bike here, but recently I have noticed a new breed of cyclists who ride in the middle of the road, which makes it so there is no way to pass them. I have had this happen 5 times in the last few weeks, I am completely baffled. Am I supposed to just ride behind them at their own pace? Risk both of our lives trying to pass them in the left lane through curves? Honk? What is the correct etiquette to this terrible biking habit I have been noticing?