Hierve el Agua
District

Hierve el Agua

Oaxaca's petrified waterfalls and natural infinity pools

Two hours east of Oaxaca City, mineral-rich springs have been building limestone terraces for thousands of years. The result? Hierve el Agua — literally "the water boils" — where you can swim in natural infinity pools that seem to spill over cliff edges into the valley below. These aren't actual waterfalls, but petrified cascades that look like frozen water tumbling down the mountainside. The main pool sits at 8,200 feet above sea level, offering views across the Sierra Madre del Sur that'll make your Instagram followers seriously jealous. But here's the thing — this place rewards the effort it takes to get here.

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You've got two main ways to experience Hierve el Agua. The easy route takes you straight to the upper pools — a flat 5-minute walk from the parking area that even kids can handle. Here you'll find the famous infinity pool and the best photo ops of the petrified waterfalls. But the real adventure starts with the trail down to the base of the formations. This 45-minute descent is steep and rocky, dropping about 1,000 feet through scrub forest. The path isn't marked well, so stick with other hikers or hire one of the local guides who hang around the entrance for 200 pesos. At the bottom, you can walk right up to the mineral formations and see how the calcium carbonate has built these incredible structures over millennia. The hike back up is a workout — bring water and take your time. Some visitors skip the lower trail entirely, and honestly, the upper pools deliver most of the wow factor with way less effort.

Money-Saving Tips

  • 1.Bring exact change for the 30-peso entrance fee and 20-peso parking — they rarely have change for large bills
  • 2.Pack your own lunch and snacks — the on-site restaurant charges 150+ pesos for basic meals
  • 3.Split gas costs by carpooling from Oaxaca City — the drive takes 2 hours each way
  • 4.Hire a local guide at the entrance for 200 pesos if you're hiking to the bottom — worth it for safety and knowledge
  • 5.Buy water in Mitla before heading up — it's 3x cheaper than at the site

Travel Tips

  • •Arrive early (by 9 AM) to avoid tour bus crowds and get the best photos
  • •Bring water shoes — the mineral deposits in the pools can be sharp and slippery
  • •Don't drink the pool water — it's loaded with minerals that can upset your stomach
  • •Check your phone signal before hiking to the bottom — coverage is spotty down there
  • •Pack layers — it can be 20 degrees cooler than Oaxaca City due to the elevation
  • •Take the access road slowly — it's unpaved and full of potholes that can damage low cars
  • •Respect the formations — don't climb on the petrified waterfalls as they're fragile and took millennia to form

Frequently Asked Questions

Rent a car for the most flexibility — it's a 2-hour drive east via Highway 190 to Mitla, then follow signs on the unpaved access road. Alternatively, join a day tour (800-1200 pesos per person) or take a colectivo to Mitla and arrange a taxi for the final stretch (about 300 pesos each way).

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