A surge of tourists are expected to come to the walled city as it celebrates 2013, with local businesses hoping they will spend lots of money.
But for those who are out and about, spending a penny can be tricky...
There have been claims that council facilities are often closed for repair, or frustratingly won't let anyone in - one block in Victoria car park refuses to take any money.
Meanwhile the toilets in the new Ebrington Square are only in use when there's a large event in Ebrington, and the rest of the time they are locked.
They have also been vandalised and badly damaged several times in recent weeks.
Derry City Council said it has been taking steps to address its inconvenient problem surrounding public conveniences.
New, semi-permanent toilet blocks are in the pipeline during the Culture year.
The council said: "Councils Event Team are planning to increase public toilet provision in 2013 by placing a number of semi-permanent portable toilet blocks in and around the City Centre area augmented by additional provision at times of key events."
The statement added that the Victoria car park toilets are checked and stocked on a daily basis, while a number of other facilities across the city have been closed in recent years due to a lack of people using them, and anti-social behaviour.