Part 5: The riders work technique for riding a mound. Boyd shares his philosophy of keeping the horse balanced at the bottom and getting their feet moving to the top. The group also tackles a log going into the water, which presents a challenge as the horses don't see the landing or the water until they jump. Boyd encourages the riders to use a longer rein and stay more behind their horses with their seat to provide added security at this tricky element. He has them add leg, and in some cases spur in the last stride, to give their horses confidence to jump.