It may be wise to avoid visiting the Belfast murals during Marching season around July 12 commemorating the Battle of the Boyne by the Orange men. Also obviously it is best to visit the murals during the day. Don't take pictures of people in these areas and don't nose about into people's houses you will be asking for trouble. The Divis Tower in Divis street is the most bombed high rise building by the IRA and the british army still occupy the top floor.
This isn't helpful either...
The 'sectarian' division between Catholics and Protestants remains at the crux of the problem in Northern Ireland. In some subtle, and not so subtle ways, the problem is communicated to the watchful visitor.On my trip, I was particularly aware of visible graffiti left by the UVF... the 'outlawed' Protestant Ulster Volunteer Force. As you enter any small town in Northern Ireland the first things you may notice are the small flags flying on the telephone poles.... the Union Jack for a Protestant dominated town, and the Irish Tri-Color for a Catholic dominated town.It sort of reminded me of the way lions urinate on trees to mark their territory....well, be that as it may. In any event, the 'message' and the subtle attempts at intimidation continue.
12th July Parades
These are basically 'British' parades. They happen thoroughout NI on this day, the largest being in Belfast. They are full of colour and noise, different bands such as Blood and thunder, silver, melody, accordion, bagpipe etc.
These are parades for Loyalists to celebrate their British heritage - they are accessible, being in most town centres (Belfasts going through the city centre).
You wont have a problem unless you wear 'Irish Republican' clothes or paraphernalia or you do or say anything 'anti-British'