Hi, anyone who is travelling to Belfast may remember the journey from the last two years. You should exit the main M1 motorway at junction 2, and take an immediate left onto Kennedy Way. There is another roundabout almost immediately ahead, at which you take another left onto the Andersonstown Road. Casement Park is on your left. Parking in the immediate vicinity around the stadium is usually ok - if it is very busy you can park at one of the shopping centres a little down the road (a right off the second roundabout) and walk back to the stadium.
On the main Andersonstown Road there are plenty of options for food / a pint, if you are early you can get a drink in the social club in Casement (though no food in the club there will be burgers etc available in the ground). There is a nice match programmes on sale at €2, and Club Aontroma will be selling ballots at €2 for a draw which will take place at half time, the prize is £200.