Arequipa works best as a city you pace rather than rush. It sits at about 2,300 metres, the best sights are packed into a walkable historic centre, and the biggest excursions, to Colca Canyon and the volcanoes, start before dawn. Three days is enough to see the essentials if you sequence them well: gentle first, big second, delicious third. This plan assumes you arrive the evening before or early on day one, and it leaves room to swap days around if the weather or your energy changes.
Day one: the old town and the convent
Start at the Plaza de Armas in the morning light, when the arcades are quiet and the cathedral glows. Visit the cathedral and its rooftop if time allows, then walk to the Church of La Compania de Jesus for its carved baroque facade. After a long lunch at a picanteria, head to Santa Catalina Monastery in the afternoon, ideally with a guide, and allow two hours or more. If the monastery has an evening opening on your day, it is a magical way to see the lanes by lantern light. Keep the pace slow, drink water and avoid heavy alcohol while you acclimatise.
Day two: Colca Canyon or a volcano
This is your big day, and you have choices. The most popular is the Colca Canyon full-day tour, leaving before dawn for the Cruz del Condor and returning in the evening. It is long but covers the highlights. If you prefer a calmer pace, the two-day version, with a night in the valley and a soak in the hot springs, is worth an extra day. Keen trekkers might choose the Misti or Chachani climbs instead, though these require acclimatisation and are better later in a longer stay. Whatever you choose, bring warm layers, sun protection, water, cash for tickets and motion sickness tablets if the road bothers you.
Day three: museum, food and viewpoints
After the big day, take a slow morning. Visit the Juanita museum, a short guided tour that tells the story of the Inca girl found on Ampato, and then wander to the San Camilo Market for juices and snacks. For lunch, a guided food tour is an excellent way to taste rocoto relleno, adobo and cheese ice cream with a guide who explains it all. In the late afternoon, walk or taxi to Yanahuara for the arches and the postcard view of Misti, then return for sunset on a rooftop terrace around the plaza. If you prefer something active, a half-day rafting trip on the Chili river fits the morning.
If you have more time
A fourth day could include a Sabandia mill and countryside outing, the sillar quarries, or the Salinas lagoon for flamingos, all within a few hours of the city. A fifth day might add the Sangalle Oasis trek in Colca, a further journey to the Valley of the Volcanoes, or a day at Toro Muerto. Travellers continuing to Puno or Cusco can end a Colca trip in Puno, which saves backtracking. Where to stay matters too: a central hotel near the plaza makes early pickups and walking easy, while a quieter guesthouse suits longer stays.
Practical notes
Taxis are inexpensive and plentiful, but use registered cabs or ride apps and agree fares if there is no meter. The sun is intense and nights are cold, so layers and sun cream are essential. Cash in Peruvian soles is useful for tickets, markets and tips, and many sights accept cards, though not all. If altitude bothers you, rest in the afternoon, eat lightly, drink water and avoid overdoing it on day one. Finally, book the big tours a day or two ahead so you can adjust to the weather, which can affect views at Colca and on the volcanoes. With a sensible rhythm, three days gives a satisfying first look at the White City and its dramatic backyard.
Choosing between options
If you only want one big excursion, decide by interest: condors and landscapes point to Colca, flamingos and a gentler pace point to Salinas, and a challenge points to a volcano. If the weather is poor on your planned day, swap it with a city day, because the old town is largely unaffected by cloud. Keep your first evening simple, with an early dinner and an early night, and keep an eye on your energy in the afternoons, when the sun and altitude can make everything feel more tiring than expected. A flexible plan beats a perfect one.
A sample day-by-day summary
Day one is the plaza, cathedral, Compania de Jesus and Santa Catalina. Day two is Colca, either as one long day or the start of a two-day trip. Day three is Juanita, the market, a food tour and sunset at Yanahuara. Add a fourth day for Sabandia, the sillar route or rafting if you want to slow down. Whatever your pace, leave an hour free each day for nothing at all, because wandering the stone streets without a plan is part of the pleasure.