It all depends on your spending habits but my travel agent told me a base amount to aim for is $100.00 a day aud which at the moment is around 74-75 euro. When I sat down and worked out what meals I am going to have to buy and souvineers this seems to be plenty. I have tried as best I could to work out what optional activities I might like to do and budgeted for them separately. If there is a couple I can’t decide on I tried to budget for the most expensive one. If I decide to go for the cheaper option than either way I am covered.
Everyone is different and it depends on where you like to eat and what souvineers you want. the above is how I have tried to approach it. I am hoping it is enough but sitting down and really looking at the inclusions for each day and what I am going to have to pay extra has helped.
Hope this has helped you even a little.