Avis has desks within terminals 1 and 2 at Dublin Airport
Child seats are available at a cost of 25 Euros for the duration of your rental. GPS units are available for a charge of 15 Euros per day. Child booster seats are also available.
Avis operate a full/full fuel policy at Dublin Airport which means that you collect your hire car with a full tank of fuel and return it with a fuel tank.
Should you wish to cancel a rental from Avis at Dublin Airport the charge is £20.