“Other Peruvians joke that you need a different passport to enter Peru’s second-largest city. One-tenth the size of Lima, Arequipa is its pugnacious equal in terms of cuisine, historical significance and confident self-awareness” – Lonely Planet
Colca Canyon Tour Info – gather information but shop around once you arrive. Book in person if you can help it, it’s always cheaper than booking online. I would recommend the two day tour. Three days moves too slowly and 1 day isn’t enough.
Doing it on your own:
3 days at a minimum. Day 1 book your Colca Canyon tour and explore the city. Days 2-3 will be Colca Canyon and take a night bus out on Day 3 or spend more time climbing volcanoes, white water rafting and soaking up the White City.