it grabbed her on the leg and her behind, and tried to death roll her and drag her away. so i was beating it on its snout, and it grabbed my wrist and my arm, so i had to beat it off with my other arm. their nightmare began here, at the manialtepec lagoon. an unlicensed german guide told their tour group it was safe to swim in these waters, despite it being hatching season for crocodiles. it's just one of those things where, you know, mistakes happen, and so i don't want him to feel any worse, because we all make mistakes. yes, pretty big one. georgia's bravery undoubtedly saved melissa, who still has months of recovery ahead. i helped save my sister's life, but also she fought for her own life as well. she really fought and clung on. will grant, bbc news, puerto escondido.