"It's an incredible opportunity that UCOL is helping me achieve, and has taken so much pressure away. I feel very supported and lucky to have this chance," Dagg says.
"I want to be the first female amputee to complete the race. Why would you not take that challenge on? That said, it's more about encouraging people to get out there and be active, to show people what they can achieve. I may be missing a wing but I can adapt."
Dagg will be competing in the two-day version of the race, with Palmerston North's Brett Garrett paddling with her in the kayaking stage. Event organisers ruled that Dagg had to have someone in the kayak with her for safety. Garrett is a veteran of four Coast to Coasts, and was happy to jump in when Dagg called him.
So, how do you learn to kayak with one hand? Dagg's the first to admit that learning to kayak has been her biggest training challenge. She had never done it before and needed to figure out a way to keep hold of the paddle. Garrett and Peke Waihanga Artificial Limb Service came up with a solution.
"The Artificial Limb Service has been a great support and made a nifty socket to connect to my arm. Brett, who works for a plumbing company, then made a device out of some pipe, a couple of washers, and some hose clamps to keep the paddle connected to me. It's great Kiwi ingenuity!
"I really didn't know if I would be able to kayak, but there was no way I wasn't going to try it."
The Coast to Coast race is 243km long and competitors run, cycle and kayak from Kumara Beach on the South Island's West Coast to Christchurch's New Brighton Beach.