Top 10 Caves in Mexico
Mexico's cave systems span two entirely different geological settings. The Yucatan Peninsula is a flat limestone platform riddled with cenotes — sinkholes that connect to an immense network of underwater cave passages — and dry cave systems used by the Maya for thousands of years. Further south and in the interior highlands, cave systems in different limestone and mineral formations include the now-closed Naica mine, whose gypsum crystal chambers are among the most extraordinary geological discoveries of the twenty-first century. The Yucatan's underwater caves form the longest mapped cave system on earth.
All accessible sites are on the cave map.
1. Sistema Sac Actun, Quintana Roo
Underwater karst cave. Sistema Sac Actun near Tulum is the longest known underwater cave system in the world, with a surveyed length of approximately 376 kilometres as of 2024 — a figure that increases with each season's exploration by teams from the Gran Acuifero Maya project and other international groups. The system was confirmed as a single connected network when divers led by Robert Schmittner linked it to the adjacent Sistema Dos Ojos in 2018, creating the single longest mapped cave anywhere on earth. The cave is accessible only to certified cave divers. Dive centres in Tulum offer sinkhole-to-sinkhole guided dives for qualified divers in accessible sections.
2. Sistema Ox Bel Ha, Quintana Roo
Underwater karst cave. Ox Bel Ha near Tulum is the second longest underwater cave system in the world at approximately 270 kilometres of surveyed passage. Like Sac Actun, it is a phreatic (below water table) network of interconnected cenotes and underwater passages in the Yucatan limestone. Exploration is ongoing; underwater mapping expeditions add several kilometres of new passage each season. Cave-diving access only.
3. Cenote Ik Kil, Yucatan
Karst sinkhole. Ik Kil near Chichen Itza is one of the most visited cenotes in Mexico — an open circular sinkhole approximately 60 metres in diameter and 40 metres deep, accessible by a stairway carved into the limestone. The cenote was sacred to the Maya; archaeological investigation has recovered jade jewellery, gold, and human bones consistent with ritual offering. It is now operated as a swimming and snorkelling site with cafe facilities adjacent. The walls are draped with hanging vines and tree roots. Tour grade A.
4. Cenote Dos Ojos, Quintana Roo
Underwater karst cave. Dos Ojos — Two Eyes — consists of two large connected cenotes near Tulum that provide access to sections of the Sac Actun system for recreational and technical divers. The Bat Cave section, reachable without full cave diving certification on a guided snorkel tour, passes through a cavern zone with large bat colonies. Dos Ojos is one of the most dived cenotes in the Yucatan. Tour grade A to C depending on penetration.
5. Cueva de Naica, Chihuahua
Gypsum cave (closed to public). The Cave of Crystals at Naica in the Chihuahua desert is one of the most extraordinary geological sites on earth. The main chamber, discovered in 2000 by brothers Juan and Pedro Sanchez mining in the Industrias Penoles silver mine, contains gypsum selenite crystals up to 11 metres long and 4 metres in diameter — the largest natural crystals ever documented. The chamber is at 50°C with near-100% humidity due to hot sulphurous water from the aquifer below; without cooling suits, a person would suffer fatal hyperthermia within 15 minutes. Mining ceased in 2015 and the mine pumps were switched off; the chamber has since reflooded. No public access.
6. Cacahuamilpa Caverns, Guerrero
Karst cave. The Grutas de Cacahuamilpa near Taxco are Mexico's most visited dry cave system, with a visitor circuit through 2 kilometres of a single enormous gallery — one of the longest continuously walkable cave passages in Latin America. The gallery averages 80 metres wide and 70 metres high; the main chambers are named after the spectacular formations they contain. Discovered in 1834 by a local landowner and explored by a scientific team in 1835. Guided tours only; the cave is within the Grutas de Cacahuamilpa National Park. Tour grade A.
7. Loltun Cave, Yucatan
Karst cave. Loltun (Stone Flower in Yucatec Maya) near Oxkutzcab in the Puuc hills is the most archaeologically significant dry cave in the Yucatan. Archaeological deposits span from the Pleistocene — mammoth and horse bones from 10,000+ years ago — through Preclassic and Classic Maya occupation to the modern period. Maya carvings and paintings appear throughout the cave. The cave remains sacred to local Maya communities; guided tours, some with Maya guides, are operated daily. Tour grade A to B.
8. Cenote Suytun, Valladolid, Yucatan
Karst sinkhole. Suytun near Valladolid is a semi-enclosed cenote — a sinkhole cave with partial roof remaining — whose central platform is reached by a narrow stone walkway across the turquoise water. The partially enclosed ceiling filters light through a circular opening, creating a photogenic beam effect in certain conditions. The cenote is privately operated; swimming is permitted. One of the most photographed cenotes in the Yucatan due to its enclosed geometry. Tour grade A.
9. Balankanche Cave, Yucatan
Karst cave. Balankanche (Throne of the Jaguar Priest) is a ceremonial cave system near Chichen Itza, discovered in modern times in 1959 by Jose Humberto Gomez. The cave contains an extraordinary collection of Maya incense burners, idols, and ritual vessels arranged around a large stalagmite representing the World Tree — left in situ since the Classic Maya period (around 900 CE) and untouched for a millennium until discovery. The cave is a managed archaeological site; tours include a recorded audio narration. Tour grade A.
10. Grutas de Garcia, Nuevo Leon
Karst cave. The Garcia caves near Monterrey in northern Mexico are one of the oldest cave systems in North America to be dated geologically, with formations estimated at approximately 50-60 million years old — formed when the region was covered by a shallow inland sea and the limestone was first being deposited. The cave is reached via a cable car from the valley below, which provides spectacular views over the Sierra Madre foothills; the circuit covers about 1.6 kilometres through 16 chambers with large stalactites, stalagmites, and flowstone terraces. Discovered by a Catholic priest, Carlos de Sabinas, in 1843. The cave is one of the most visited attractions in the Monterrey metropolitan area. Tour grade A.
Planning a Mexican cave trip
The Yucatan Peninsula is the most practical base for cave tourism: Tulum for the cenote diving systems (Sac Actun, Dos Ojos), Valladolid for cenote day trips (Ik Kil, Suytun), and Merida for Loltun and Balankanche. The cenote experience requires no caving qualification for the swimmer/snorkeller circuits; cave diving certification is needed for penetration dives. Cacahuamilpa in Guerrero makes an easy day trip from Taxco or Cuernavaca. Naica's crystals are effectively inaccessible to visitors since the mine pumps were switched off; photographs from the pre-2015 research era are the practical substitute.
Water temperatures in Yucatan cenotes are typically 24-26°C year-round, making them pleasant even for snorkelling in any season. January to April is the driest period and most comfortable for surface travel between sites. The Gran Acuifero Maya (GAM) project, a collaboration between Mexican cave divers and scientists, coordinates the ongoing survey of the Yucatan underwater cave systems and publishes updated maps as new connections are confirmed. For certified cave divers, Tulum-based dive centres — including Koox Diving and Xibalba Dive Centre — offer guided penetration dives into the accessible sections of Sac Actun and Dos Ojos, with dive briefings that cover the survey history and the ecology of the water column.