
We can't always walk outside, so why not find an indoor facility such as a
for your walking group to walk in. Meet with the owner/manager of the facility and discuss mutually beneficial ways to partner. For example, you may ask the indoor track manager to donate use of the facility and in return you would promote the indoor track in your marketing materials. This could also work for the mall and other buildings.
You may want to seek buildings with stairs and organize a "Once A Week Indoor Hike" up and down the stairs.
What do you do in your community when you can't walk outside?