Bus passengers in Dartford and Gravesham will be entitled to free bus tickets as part of Catch The Bus Week.
Bus company Arriva is offering people in the southern counties free tickets from April 28 to May 4.
Free day saver tickets are designed to act as an incentive to try the bus and understand “the benefits, ease and convenience that public transport can offer”.
Catch the Bus Week is organised by Greener Journeys, the sustainable transport group, and aims to increase awareness of the benefits of bus travel across the UK.
Regional marketing manager Linsey Frostick said: “Catch the Bus Week is a fantastic idea by Greener Journeys and one which Arriva is proud to continue to support.
“As the campaign aims to promote the bus as an option for certain trips, we thought the best way to get involved was to offer free travel on the bus so people can try it for themselves.
“We are offering free day saver m-tickets to people in Southern Counties to experience the buses that operate in their area.
“All people have to do to take advantage of our offer is to register for the Arriva m-ticketing service and use our Catch the Bus Week promotional code – 4343, when purchasing an m-ticket between April 28 and May 4.”