A total of 1 859 athletes, 180 from the Bay, will tackle this year’s race.
The field includes 616 international athletes and 68 different countries will be represented.
Wolff said the biggest challenge at the moment was to make sure that the road was clean for the race.
“Everything is going well. We are on schedule for everything,” Wolff said.
“We are making sure that all the roads are clean and swept and all the facilities are ready. That is our biggest challenge at the moment.
“There are some international athletes who are here, but most people start arriving [tomorrow] for the registration,” he said
Last year’s double Ironman World Champion Jan Frodeno, 34, withdrew from the Port Elizabeth race last month due to a calf-muscle tear. Frodeno sustained the injury in Australia while training for the Bay event.
The German professional triathlete won the Ironman World Championship and the Ironman 70.3 World Championship last year.
He also won the gold medal for the men’s triathlon at the 2008 Summer Olympics in Beijing.
Frodeno, who spent most of his teenage years in South Africa, was the favourite to win this year’s race.
Belgian triathlete Frederick van Lierde, who made a memorable debut in the race last year, will not be back to defend his title.