This year there will be 54 yarnbombed postboxes in St Albans, Harpenden, Redbourn, Wheathampstead, Park Street and Hemel Hempstead.
We hope the trail brightens your day, makes you smile, and that you take photos and share with us #stalbanspostboxes
All funds from sponsorship and donations from the public to the Polar Post Box Trail will be split three ways between local charities Earthworks, Small Acts of Kindness and Age Concern.
Discover more about the trail at www.stalbanspostboxes.org.uk
The map below shows where to find the toppers. Download it and follow the trail!