A popular day trip from Huaraz is a visit to the Pastoruri Glacier, where you can hike around the.9 square km (0.3 square mile) glacier. The rapidly shrinking ice field, which could disappear within the next few years, has become a symbol of global climate change. On this trip you'll ascend to well above 4,000 meters (13,000 feet), so make sure you're used to the high altitude. Wear warm clothing, sunscreen, and sunglasses, as the sun is intense. Drink lots of water to avoid altitude sickness. The easiest and safest way to get here is with a tour company from Huaraz. The tour costs about S/30 to S/40 and takes eight hours. You can also hire diminutive horses to take you up to the glacier from the parking lot for about S/15. It's not the most spectacular glacier in the world, but if you've never seen one up close, it's worth the trip. The glacier is 70 km (43 miles) south of Huaraz, off the main highway at the town of Recuay—a journey of about three hours.