Cape Town - Voting results from heritage site Robben Island could be the first in if everybody votes before the last ferry, an IEC official said on Wednesday.If the 143 voters registered at the World Heritage Site all made their mark before 16:30, the ballot box would make the ferry back to the mainland in time for counting on Wednesday night, said Derrick Marco, IEC electoral operations manager at the commission's nerve centre in Cape Town.If this was not possible, the votes would be counted there, the results slip scanned, and sent to the provincial results centre. The ballot box would be ferried over on Thursday morning.If there were stragglers on Wednesday, the voting station would stay open until 19:00, like all the others. Marco said voting was taking place in the big administration building visitors saw when they arrived on the island.The island is popular as a tourist venue and is the starting point for the 7.5km open-water swim to Bloubergstrand. Previously, it was a health facility and prison to many anti-apartheid figures, including presidents Nelson Mandela, Kgalema Motlanthe, and Jacob Zuma.Now a visit to the island is regarded as a poignant mark of respect to Mandela and other political prisoners. It has also become a popular Valentine's Day wedding venue.