A sunken road may include as many as four jumping components at the upper level. For instance, it could be a vertical, then a stride to a considerable drop into a pit, a one-stride distance to a bank going out of the pit, and beyond the bank, another vertical or even a bounce. But a sunken road is more than just a combination of cross-country elements. It tests your horse's power, balance and agility to jump down, then rock back and rebalance within a short distance to jump up again.
Learn Boyd Martin's system for introducing and riding the sunken road in this video.
Video and editing by www.akdragoophoto.com