Practical Information for visiting Yucatan Peninsula

Coverage for mobile networks is good along the Caribbean corridor, in Merida and Campeche and in the larger towns, with 4G and some 5G from Telcel, which has the best rural reach. It thins inland and is absent around Calakmul and in parts of Sian Ka’an.

Local SIMs and eSIMs are cheap and easy; Telcel is the sensible choice for travel beyond the resorts.

Wi-Fi is standard in hotels, hostels and cafes and generally good in the towns.

Power is reliable except during storms; hurricane outages can last days.

Download offline maps before the Puuc route and Calakmul, where signal disappears entirely and the roads are unsigned.

The Yucatan is among the safest parts of Mexico — Yucatan state in particular has one of the lowest crime rates in the country — but conditions vary across the peninsula.

• Quintana Roo, the Caribbean side, has seen cartel-related violence in Cancun, Playa del Carmen and Tulum, generally between groups rather than affecting visitors, though bystanders have been hurt. Check current advice, avoid drugs entirely, and leave any situation that feels wrong.
• 
  
• Cenote safety: some are deep with no shallow edge, and cave diving requires specific certification — deaths occur among divers who enter overhead environments without it.
• 
  
• Sun and heat are the most likely everyday problem, especially at open sites like Chichen Itza with no shade.
• 
  
• Rip currents on the Caribbean beaches, and crocodiles in some lagoons and mangroves.
• 
  
• Driving at night: topes, livestock and unlit vehicles.
• 
  
• Hurricanes from June to November.

Private hospitals in Merida and Cancun are good and used to foreign patients; Merida in particular is a regional medical centre. Rural clinics are basic. Insurance is important, and should cover diving if you intend to.

Vaccinations: routine cover plus hepatitis A and typhoid; rabies for longer rural stays.

Mosquito-borne illness: dengue is endemic with periodic outbreaks, and chikungunya and Zika circulate. The mosquito bites by day — use repellent, and note that you should shower it off before entering a cenote. There is no malaria on the peninsula.

Heat and dehydration at the archaeological sites, where shade is minimal and visitors routinely underestimate it. Go early, carry water.

Stomach upsets: drink bottled or purified water, which is universal here, and be sensible with street food — the busy stalls are generally the safe ones.

Cenotes are clean but cold; entry ladders can be slippery.

At the Maya sites, climbing is prohibited on almost all structures, including Chichen Itza’s pyramid, and guards enforce it. Drones require permits. Do not remove anything.

Cenotes: shower before entering where facilities exist, and use only mineral sunscreen anywhere near water — this is a rule at the better sites and a courtesy everywhere.

Maya communities: ask before photographing people, particularly women in traditional dress, and expect that a small payment may be appropriate. Some ceremonies are private.

Greetings matter in Yucatecan Spanish — buenos dias on entering anywhere, and a degree of formality that is more marked than in northern Mexico.

Churches: dress modestly; many are built from the stone of dismantled Maya temples, which locals will point out.

Drugs carry serious penalties and are connected to the violence on the Caribbean side.

Emergency number: 911 nationwide, with English-speaking operators generally available in the tourist areas. The Angeles Verdes green-angel highway patrol assists motorists free of charge on 078.

Medical. Star Medica and Clinica de Merida in Merida, and Hospiten and Amerimed in Cancun and Playa del Carmen, are the private hospitals used to foreign patients. Payment or an insurance guarantee is expected upfront.

Diving: recompression chambers are in Cozumel, Cancun and Playa del Carmen. Cave diving without the correct certification is the leading cause of diving deaths here.

Hurricanes: follow civil protection instructions, which are well organised. Barrier islands are evacuated first and the airport closes early.

At remote sites like Calakmul, there is no signal, no fuel and little traffic — fill the tank and carry water.

Consulates for many countries are in Cancun and Merida.