The inquest into their deaths heard Richie was found lying in snow about 100m (109yds) from his father and it appeared both had fallen.
They heard the pair set off for Scotland on 26 May and, on 28 May, Tom called his wife to say they were going to climb another mountain.
He told her they expected to get back at around 21:00 BST that night.
They were reported missing to Cheshire Police by Mr Parry’s wife the following day, after failing to return home.
Their vehicle and some belongings were found in Three Sisters Car Park, Glen Coe.