doctors say they are stunned with how healthy luke shambrook appeared , considering he had gone without food or water since good friday .
sitting up in his hospital bed , the young boy is seen flanked by two people from the search and rescue team who made the dramatic find on tuesday , just three kilometres from where he went missing at lake eildon national park , northeast of melbourne .
luke shambrook was lost for four nights alone in the victorian bushland and on wednesday he was reunited with his rescuers at royal children 's hospital in melbourne .