The Kruger National Park is concerned plans to enlarge the Massingir dam in Mozambique will destroy one of the world's largest breeding grounds for the Nile Crocodile. The higher dam wall and newly installed sluice gates would cause sediment to back up into the 8km-long Crocodile Gorge, said spokesperson for the Kruger National Park, Raymond Travers. The gorge is in the park and, while it is not generally accessible to tourists, it is the world's largest breeding ground for the Nile Crocodile, he said.