If you're itching for outdoor activities — like a great hike through Peru's Andes Mountains — but you're on a budget, you might find Argentina's Patagonia more feasible. But this will be a totally new experience: while Peru's go-to site is hot and humid, the Patagonia's icy glaciers and wild, barren landscapes are chilly to mild (depending on the time of year you visit) but breathtaking.
Take yourself on a hiking tour of the Parque Nacional Los Glaciares, or sign up for one of Viator's many sailing or hiking excursions. If you're really on a budget, you can stay in La Tosca Hostel, a popular local guesthouse, or opt for the cozy Calafate Parque Hotel located in the center of town.