Prime Minister Tony Abbott and his wife Margie have attended three international services on the Gallipoli peninsula amid incredible security.
Prince Charles and Prince Harry, in military dress, represented the British royal family.
Turkish snipers were scattered throughout the surrounding fields as visitors were forced to go through numerous road blocks. Sniffer dogs checked all baggage for explosives.
The first function on Friday afternoon (Saturday morning AEST) was the Turkish-led international service at the Abide memorial with President Recep Tayyip Erdogan and Prime Minister Ahmet Davutoglu.
Turkish Air Force aerobatic jets marked its late ending as the dignitaries made their way to the nearby UK-led Commonwealth and Irish service at Cape Helles.
After that Mr Abbott, on his first-ever visit to Turkey, attended the French service at Morto Bay.
Due to the late-finish of the Turkish service the prime minister's planned speech to pilgrims at Anzac Cove ahead of Saturday's dawn service was cancelled.
Earlier, the PM had walked from Lone Pine down the steep and rocky Artillery Road to the shores of the Aegean Sea.
Ronald Campbell, 92, was leaning on a walking stick and waiting patiently with his granddaughter and friend when Mr Abbott and his entourage barrelled into Beach Cemetery.
Mr Abbott was being given a tour of the Gallipoli battlefields.
Mr Campbell was on the peninsula to pay his respects to his father, George Campbell, an Anzac who fought the Turks back in 1915. It's his third visit.
Asked later how the meeting went Mr Campbell chuckled for a while before revealing he was disillusioned with politicians from all parties.
Mr Campbell's father was a private in the 8th battalion who landed on the peninsula in late 1915.
He went on to serve at Alexandria and then the Western Front before being wounded in late 1917.
Some critics have suggested there's too much hype surrounding the 100th anniversary but Mr Campbell disagrees.
"After 100 years it's deserving," the Victorian said. "I don't think it's overdone."
Mr Campbell will go to Lone Pine after the dawn service on Saturday in a shuttle bus rather than tackling Artillery Road in the opposite direction to Mr Abbott.
After the war George Campbell went back to his job with British American Tobacco Australia in Melbourne.
The Anzac looked after the store where the tobacco leaf was held. He died 20 years ago.
