MADRID, April 13 (Reuters) - A 50-year-old Spanish extreme athlete emerged on Friday from a 500-day challenge living 70 metres (230 feet) deep in a cave outside Granada with minimal contact outside. She did come out for eight days, her team disclosed, but stayed isolated in a tent waiting for repairs to a router used to send audios and videos to tell her team how she was doing. She was looking forward to a shower and sharing a plate of fried eggs and chips with friends