By Olivia Day for Daily Mail Australia
Friday, October 15
Cleo along with her mother Ellie Smith, her partner Jake Gliddon and her little sister Isla Mae arrive at the Blowholes campsite around 6:30pm.
They had a 'quiet' night and arrived at sunset.
Saturday, October 16
1:30am: Parents' last sighting of Cleo in the tent she shared with her parents and baby sister when the four-year-old asks for some water.
6.23am: Ellie calls 000 to report her eldest daughter missing as she continues to search the camp ground.
6.30am: The first two officers are dispatched from Carnarvon police station. They travel to Blowholes as a matter of priority, with sirens and lights.
6.41am: A second police car with another two officers is sent to Blowholes, also with lights and sirens.
7.10am: The first police car arrives. The second is only minutes behind.
7.26am: Police on the scene establish a protected forensic area which is taped off to the public, surrounding the family tent where Cleo was last seen.
7.33am: A drone operator is called upon to search from the skies.
7.44am: A third police car is dispatched to the Blowholes.
8am: Family and friends of Cleo's parents begin to arrive to help with the ground search.
Another group of detectives briefly searches Cleo's home to make sure she's not there.
They then head to Blowholes and begin stopping cars coming into and leaving the area.
8.09am: A helicopter from a local company arrived at the scene and started searching as police request an SES team attend the Blowholes search.
8.24am: Police air-wing and volunteer marine searchers are called in to assist with the search.
8.34am: Roadblocks are set up at the entrance of Blowholes as detectives gather the names, registration details and addresses of people coming and going. Police search cars.
9.25am: Nine SES personel arrive at the Blowholes to assist with the search.
Investigators, bounty hunters and officers from the Australian Federal Police have spent two-and-a-half weeks searching for missing four-year-old Cleo (pictured)
9.30am: Detectives sit down with a distressed Ellie and remain by her side for the rest of the day while other search crews hunt for Cleo.
11am: Homicide detectives from the Major Crime Division are called and begin travelling from Perth to assist with the search.
1pm: More homicide detectives and search experts are flown in from Perth.
3pm: Officers and search experts arrive in Carnarvon to offer their expertise.
Sunday, October 17
Ms Smith takes to social media to plead for help finding her missing daughter.
A Facebook post uploaded at 1:45am on Sunday which said: 'It's been over 24 hours since I last seen the sparkle in my little girl's eyes.
'Please help me find her!
'If you hear or see anything at all please call the police!'
Police suggest Cleo may have been abducted.
Monday, October 18
Police release an image of the red and grey sleeping bag missing from Cleo's tent.
Cleo's biological father is interviewed by police in Mandurah and is asked to provide a statement, which he does so willingly.
WA Police with the help of SES members, volunteers and aircraft continue the land hunt for Cleo, with officers searching nearby shacks and vehicles in the area.
Tuesday, October 19
Cleo's mother Ellie Smith and her partner Jake Gliddon front the media for the first time and describe the terrifying moment they realised the little girl was missing.
Ms Smith says her four-year-old would never have left the tent by herself.
Police release new images of Cleo and the pink and blue one-piece she was wearing the night she
