Cobh Tidy Towns are encouraging everybody to make a real effort to "shop local, eat local, spend local and enjoy local."
The move comes after Irish Water began the latest phase of their Lower Harbour Main Drainage scheme on Great Island on Monday.
The Tidy Towns group say that, despite nearly two years of pending Irish Water rolling road closures "Cobh is open for business, and local businesses need your support."
The Irish Water project involves the installation of pump houses and pipework throughout the Island to work towards a cleaner Harbour for everyone.
Almost 10,000 wheelie bins of raw sewage are discharged daily into the sea from Harbour communities.
There is a multitude of opportunities to buy your clothes, gifts and groceries locally, said the five times National Tidy Towns Gold medallists.
What you can find in Cork City you can probably find locally in Cobh, they say.
When people shop locally every Euro is reinvested back into the local economy, keeping people in the community and serving Cobh families.
Local independent operators, in turn, reinvest that Euro in maintaining jobs and wages and investing in the wellbeing of the community.
The retail business is of vital importance to the Irish economy, employing over 275,000 people, which is about 14% of the total Irish work force.
Without your support the jobs, at this time and year round, are not secure.