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![Spain](https://imagevars.gulfnews.com/2020/06/04/Spain_1727f2e8210_original-ratio.jpg)
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![Greece](https://imagevars.gulfnews.com/2020/06/04/Greece_1727f31bfbb_original-ratio.jpg)
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![Greece](https://imagevars.gulfnews.com/2020/06/04/Greece_1727f3d2f7c_original-ratio.jpg)
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![Germany](https://imagevars.gulfnews.com/2020/06/04/Germany_1727f40fdf6_original-ratio.jpg)
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![Portugal](https://imagevars.gulfnews.com/2020/06/04/Portugal_1727f444bc3_original-ratio.jpg)
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![Croatia](https://imagevars.gulfnews.com/2020/06/04/Croatia_1727f518aeb_original-ratio.jpg)
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![Britain](https://imagevars.gulfnews.com/2020/06/04/Britain_1727f553279_original-ratio.jpg)
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![Italy](https://imagevars.gulfnews.com/2020/06/04/Italy_1727f5d086f_original-ratio.jpg)
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![Austria](https://imagevars.gulfnews.com/2020/06/04/Austria_1727f609630_original-ratio.jpg)
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![CZECH REPUBLIC](https://imagevars.gulfnews.com/2020/06/04/CZECH-REPUBLIC-_1727f67367e_original-ratio.jpg)
Europe gets ready to welcome tourists for summer. Here are the rules to keep in mind.