A group of Oxford undergraduate students posed for an upcoming calendar to raise money for developing countries. While the students were photographed doing the usual Oxford activities (studying, drinking, enjoying a boat ride, etc.), they decided to get down to their birthday suits and bare all for the charitable calendar.

While many Oxford alum and staff are not too happy about the nude pictures, the £10 pricetag gave many of the 60 participating students a “liberating” experience.

Check out the gallery above for a peek at the Oxford charity calendar.