Short trail descending to the base of petrified mineral waterfall formations and natural swimming pools on cliff edges. The hike rewards with stunning views of Oaxacan valleys and the chance to swim in mineral-rich pools.
Hierve el Agua is a natural rock formation near San Lorenzo Albarradas in the Central Valleys of Oaxaca, Mexico, roughly 70 kilometres from Oaxaca City. The site's signature features are petrified waterfalls — mineral-rich spring water that has cascaded over cliffs for millennia, depositing dramatic white calcium carbonate formations that resemble frozen waterfalls hundreds of metres tall. The trail visits these formations and the natural infinity pools perched at cliff edges with sweeping panoramic views of the Oaxacan valley below.
The trail begins at the main entrance area managed by the local community of San Lorenzo Albarradas, where entry fees of approximately MXN 40-50 per person are collected. A short paved section leads to the cliff-edge pools, while a descent trail of roughly 2.5 kilometres winds down the hillside to the base of the two main petrified waterfall formations — Cascada Grande and Cascada Chica. The full loop covers approximately 5 kilometres with around 100 metres of descent and return ascent. The path combines compacted dirt and stepped stone sections, generally well maintained but slippery after rain.
Visitors typically begin at the main terrace overlooking the pools and the valley before descending the switchback trail to the base of Cascada Grande, the larger of the two formations. Cascada Chica requires a short branch trail. Both viewpoints offer striking perspectives on the white mineral deposits extending over the cliff edge. The natural pools at the top are open for swimming — the water is mineral-rich and cool despite the site's name.
Facilities at the upper terrace include a parking area, toilets, basic food vendors, and changing rooms for swimmers. No facilities exist on the descent trail. The road to Hierve el Agua is paved from Mitla but narrow and winding; collective van services (colectivos) run from Mitla, making the site accessible without a private vehicle. The return ascent, while not technically demanding, can feel strenuous in midday heat. Sturdy footwear with grip is advisable on the rocky descent surface.
Trail facts
- Trail area
- San Lorenzo Albarradas, Oaxaca
- Best season
- October to April (dry season); the formations and pools are most photogenic when skies are clear and no recent rain has made paths slippery.
Highlights
- petrified waterfalls
- mineral pools
- valley views
- swimming
Tips for visiting
- Arrive before 10 a.m. on weekends — the pools become crowded quickly, particularly on Mexican public holidays.
- Wear a swimsuit under hiking clothes; the mineral pools are the highlight and most visitors swim.
- The descent to the waterfall base is partially exposed and steep — closed-toe shoes with grip are recommended over sandals.
- Colectivos from Mitla run frequently in the morning but become scarce in the late afternoon; arrange return transport in advance.
- Bring cash for the entrance fee and any meals from vendors near the pools — card payment is not available on site.
- The site sits at approximately 1,700 m elevation; light clothing is comfortable but bring a layer for wind at the cliff edge.
When to visit
Mornings before 10 a.m. offer the pools without peak crowds; weekday visits from November through April avoid rain-slicked paths and the busiest tourist season.
Accessibility
The main terrace and cliff-edge pools are reachable via a short, mostly paved path from the parking area, making them accessible for visitors with limited mobility. The descent trail to the waterfall base is steep, uneven, and not wheelchair or stroller accessible. Visitors using wheelchairs can still enjoy the panoramic valley views and petrified waterfall overview from the upper terrace.
Frequently asked questions
How do I get to Hierve el Agua from Oaxaca City?
The most common option is a colectivo van to Mitla (about 40 minutes from Oaxaca) followed by another colectivo to Hierve el Agua (around 30-40 minutes more). Organized day tours from Oaxaca City also combine the site with other Central Valley stops. Driving takes about 1.5 hours via Highway 190 through Mitla.
Is swimming allowed in the natural pools?
Yes, the natural mineral pools at the cliff edge are open for swimming and are the site's main draw. The water is cool rather than hot, mineral-rich, and positioned dramatically on the cliff edge with valley views.
Are there food and toilet facilities on site?
Basic food vendors, toilets, and changing rooms are available near the main entrance and pool area at the top. No facilities exist on the descent trail to the waterfall base, so carry water and snacks for the descent.
Is the trail child-friendly?
The upper terrace and pools are easily accessible for children. The descent to the waterfall base involves steep, uneven stone sections and is not recommended for very young children or those without sure footing. Strollers cannot manage the descent trail.