I went to Greece with my parents and my cousin as a teenager. It was a brilliant trip with the exception that i got the worst sunburn of my life. I fell asleep, completely unlike me, facedown on a sunbed and when i woke up the back of my knees were raw. Ouch!
Despite this, we had lots of fun with swimming, sunbathing, water sports and trying different foods. Watching my cousin eat vine leaves was particularly amusing. Lets just say they weren't his favourite food.