Zanele Ndlovu had to have her lower right arm amputated after being bitten near Victoria Falls.
She had been canoeing with her partner Jamie Fox, from Bromley, Kent, when the reptile attacked.
Despite Ms Ndlovu’s serious injury, the couple were determined not to cancel their wedding day.
They married in a hospital chapel, with Mr Fox, 27, saying what had happened was a “miracle” and made him love his bride “even more”.
The attack helped him to appreciate the “deep meaning in our vows: for better or worse, in sickness and in health”, he said.
Ms Ndlovu told The Chronicle newspaper in Zimbabwe that the water had been “very calm” before the crocodile “just jumped out of the water and bit a chunk of my arm together with the side of the boat”.
She added: “The canoe started deflating and it all happened so fast.
“The crocodile bit me again and and pulled me into the water. My husband was thrown out on the opposite side.”
Speaking at the Mater Dei hospital in Bulawayo, she continued: “Jamie swam over to where I was struggling with the crocodile that was trying to pull me to the bottom of the river.
“He grabbed my waist and with the other hand he rained blows on the crocodile.”
The crocodile “finally let go”, Mr Fox said.
The pain was “excruciating”, Ms Ndlovu said, but “with my husband by my side, I summoned the strength to fight through it”.
The couple said guides had told them crocodiles were rare in that part of the river.
They were taken by helicopter to a hospital in Victoria Falls before being transferred to Mater Dei.
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Ms Ndlovu was discharged from hospital on Monday.
The couple, who met in 2016, are soon relocating to the UK.