An investigation is underway after an incident at Center Parcs in Longleat injured two children and left a man with broken ribs.
The man and his nephew, 12, and niece, 13, were all injured on the Tropical Cyclone ride when their raft flipped on August 19.
Center Parcs apologised for the incident but said it was "simply an unfortunate accident".
A spokesman for holiday company told the BBC that incidents of rafts overturning were "extremely rare" and more than 340,000 rafts have travelled safely down the course in the last six months.
The man involved told the BBC that he and his family had been on the ride "countless" times before.
"We went into thin air and that's why we flipped," he said.
"The thing that I really remember was the cracking sound of my ribs hitting the side of the flume."
His niece and nephew both received minor head injuries as a result of the incident.
The customer said his niece had an "impressive bump just above her right eye, bruising along the right side of her chin and a headache" for about a week after the incident, while his nephew had a headache for the rest of the day.
Speaking to the BBC Center Parcs said it takes the safety of its guests "extremely seriously" and carries out rigorous checks to ensure all rides are "as safe as possible".
Wiltshire Council has launched an investigation and a spokesman told the BBC : "We are working closely with Center Parcs, and other partners, to determine the best practice moving forward."
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