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That defeat, coupled with a loss in Ireland, ended Wales' hopes of clinching an unprecedented third straight RBS 6 Nations title but in Halfpenny's absence they did end their campaign on a high with a crushing victory over Scotland.
Next up is the tour to South Africa which will take place without Halfpenny as he recovers his fitness but he is already plotting Wales' resurgence next season.
"We set out to create history by winning the tournament for the third time on the bounce and it was devastating that we couldn't achieve that," he told Wales Online.
"It was great to see the team play so well and put in a performance in that last game.
"To put that many points on Scotland will allow some confidence and momentum to feed through the squad as they prepare to go to South Africa.
"That is going to be a tough tour, a huge challenge, but the boys are looking to go there and get two wins.
"This is a massive year, going into next year.
"We have tough fixtures in the autumn and we need some wins against the big southern hemisphere teams to take into the World Cup. That would be massive, especially as we have Australia in our group.
"Then we have to do well in the RBS 6 Nations.
"We're disappointed not to have defended our title this year, but we will be looking to make amends for that come the next Championship."