Go out as a group and tackle this one together. Taking some friends is a great way to catch up with people while also doing some excellent stuff for the environment.
Be careful when picking up trash as some places may have dangerous items buried away deep in the undergrowth. These could be things such as broken glass, used needles or bottles containing residue of harmful chemicals. Wear the right protection like gloves and take extra care just to be sure.
When clearing places, be sure to leave anything natural where you found it. For example, driftwood on beaches or fallen trees and branches are important to the ecosystem. This is the wild, not your front room, so no need to bring the hoover.
Just starting or have you completed this challenge?