Giddens has been basing herself on the nearby Cozumel Island in the Caribbean Sea, training on the island's Ironman bike course. "You're either riding right next to the ocean or the jungle.
"There are heaps of cyclists and athletes from other sports here, it's perfect."
After winning the women's race, Giddens also entered men's event for training purposes to pit herself against riders from Mexico, Spain, Venezuela and Belize.
The men's winner was from Belize, which is on the northeastern coast of Central America and where Giddens made a 700km cycling round trip to in December.
"It was an adventure.
"It took 16 hours straight in the saddle, so I combined some really good endurance training with sightseeing, visiting a new country, and just seeing if I could do it or not."
Her next race is an international tour in Costa Rica next month. Giddens victory can be found on Youtube by searching for '1a. Carrera Ciclista de Playa del Carmen'.