Ten police officers are walking one hundred and ten miles in memory of two murdered police officers.
PC Nicola Hughes and PC Fiona Bone were killed in a gun and grenade attack.
Their colleagues began the trek in Uppermill at half seven this morning.
They are walking the entire Greater Manchester boundary to raise money for charity.
The walk ends on Sunday in Saddleworth near Nicola Hughes' family home.
PCs Nicola Hughes and Fiona Bone and were shot in Hattersley last September at a suspected burglary.
Ten police officers are taking part in a 110 mile charity walk across Greater Manchester in memory of PCs Nicola Hughes and Fiona Bone.