Contiki is a New Zeland company who specialise in club 18-30 holidays around Europe, Australasia and North America. I went on the European Highlights tour, which covered France, Italy, Germany and Holland, stopping in cities such as Paris, Nice, Florence, Rome, Venice, Munich and Amsterdam.
Boy, what an experience it was! It's a coach holiday, and for your £800-odd you are driven from place to place, it is a budget holiday, and the accommodation at times isn't what you would call luxury, but it is comfortable and you do get a decent night's sleep.
The tour is well run by an established company and you do get looked after, and get told on where to go, how to act and even a language lesson at times. For those who don't want to live a holiday where you are doing the same things at home, then I highly reccommend Contiki Holidays.
The experience to me was life changing, and I have friends for life from this tour. I would reccommend it totally!