Greek islands
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If you mean Rhodes ( or Rodos as Greeks call it) it is a popular tourist destination so there should be enough hostel, hotel and apartment offers online. http://directory.justlanded.com/en/Greece see what you can find here. If you don't find anything just go through the bigger hostel database websites I am sure you will find something. Also, it is not uncommon in Greece (especially the islands) for people to rent rooms in their own homes so you should check out this option too.
I hope I helped you. Let me know how the search went =]