From the Amir al-Mu'meneen Abu Hafs 'Umar ibn al-Khattab bin Nufayl bin 'Abd-ul-'Uzza bin Riyaah bin 'Abdullah bin Qard bin Razaah bin 'Adeyy bin Ka'ab bin Lu'ayy bin Ghaalib Al-Quraishiy Al-'Adawiy, radiya'llahu 'anhu, that he said, "I heard the Messenger of Allah, may Allah bless him and grant him peace, saying, 'Actions are only by intentions, and every man has only that which he intended. Whoever's emigration is for Allah and His Messenger then his emigration is for Allah and His Messenger. Whoever's emigration is for some worldly gain which he can acquire or a woman he will marry then his emigration is for that for which he emigrated'."

Shaykh Ibn Uthaymeen - May Allah have mercy upon him- made clear concerning the hadith about the Hijrah, that it is not allowed to travel to the lands of the Kuffar except under three circumstances. These three are:

1. That he has knowledge so that he might be able to ward off any doubts that will inevitably face him, because the Kuffar will put forward towards the muslims doubts concerning their Religion and their Messengers and their Books and their Manners, and in everything they will put doubt so that the human being is left unsure and in doubt. And what is known is that a human if he doubts anything from amongst the things one has to be absolutly certain then such a person has not fulfilled his obligation. So as for belief in Allah and His Angels and His books and His Messengers and in the last day and the Qadr its good and its evil then this is from amongst the affair which require certain belief and if one was to doubt anything from amongst it then he would be a Kafir.
2. That he has with him religion that will protect him from the lusts, because a person who does not have religion when he travels to the lands of the Kuffar he will be overwhelmed and this is due to the exposure he will face there, everything from Alcohol and Zina to Sodomy and its likes.
3. That he is in dire need of such a journey, for example he might be ill and needs to travel to such a country for treatment (because that type of treatment cannot be found in any muslim country) or that he is in need of [worldy] knowledge that cannot be found in any muslim country or that he is specialising in particular field or he makes such a travel because of business needs, he travels accomplishes his business and then returns. What is important is that there is a need for this kind of travel.

So because of this in my opinion [the opinion of Shaykh Ibn Uthaymeen] the people who travel to the lands of the kuffar solely for tourism I see them as sinful. And every cent they spend for this journey then this is Haraam and it is misplacing their wealth and they will be held accountable on the day of Qiyamah when there will not be any space to move about nor any place for leisure.