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Yucatán Peninsula

How the pieces fit: three states, two very different seas, five airports and a fifteen-hundred-kilometre loop you can ride entirely by bus and train.

0 states 0 airports with flights 37 km of the classic loop 0 days for the full loop
In two minutes

What it is, and what it is not

This page is the overview, not a destination guide: Quintana Roo faces the Caribbean, Yucatán the Gulf and Campeche the southwest, and each corner has its own page. Here you settle the structural questions: where to enter, which way round to turn, and how many days each stretch deserves.

What almost nobody gets right: treating the peninsula as one beach destination. It is two seas on opposite calendars — the turquoise Caribbean with summer sargassum, the green still Gulf without it — and an interior that depends on neither. The full loop without a flight exists, and it works.

State Q. Roo / Yucatán / Campeche Airport Cancún (CUN) / Mérida (MID) Best time Nov – Feb Avoid Sep – Oct Minimum days 7 Currency Peso (MXN)
The places

The six pieces of the puzzle

These are not stops but regions to divide your days between, in loop order.

Gateway Cancún
01 / 06
01 Gateway Cancún The airport with the most flights in Latin America and a hotel zone you can use or skip. Its role is logistical: nearly everyone enters and leaves through here. Most flights in the region The loop's front door
02 East coast The Caribbean corridor From Puerto Morelos to Tulum: the turquoise coast of reef, cenotes and high prices. It is the famous half; giving it every day you have is the classic mistake. The turquoise sea 3-5 days are enough
03 Islands The islands Holbox to the north, Mujeres and Cozumel just offshore: three different characters on twenty-to-thirty-minute ferries. They slot in as two-night asides. 20-30 min ferries Two-night asides
04 Interior The Yucatecan interior Valladolid, Izamal, Mérida and the great ruins form the loop's central axis. This is the part that turns a beach holiday into an actual journey. The loop's spine Ruins and colonial cities
05 West coast Campeche The walled city of coloured façades that almost nobody includes and almost everyone regrets skipping. It is the southwest corner, with Calakmul deep in the forest beyond. Walled city The corner everyone skips
06 South The south: Bacalar and the Costa Maya The seven-blue lagoon and the Mahahual coast close the loop along the bottom, joining Campeche back to the Caribbean on the way north. The loop's closing leg Lagoon and quiet coast
When to go

One calendar, two seas

The same date gives clean beach on one sea and seaweed on the other: the month decides which coast to turn towards.

The best November to February The one span when the whole peninsula works at once: clean sea on both coasts and civilised heat inland. Also the priciest window on the Caribbean side. —Everything works at once —Caribbean at peak price
With a caveat March to May The sea stays fine, but the interior enters its forty-degree furnace: ruins at opening time or not at all. Holy Week fills both coasts. —Scorching interior —Holy Week fills everything
Good value June to August Summer splits the peninsula in two: patchy sargassum on the Caribbean, a clean green Gulf. This is the season to turn the itinerary towards Mérida, Celestún and Campeche. —Seaweed on the Caribbean —The Gulf wins in summer
Risk September and October Hurricanes possible across the whole peninsula, the Caribbean most exposed. Rock-bottom prices in exchange for serious rain and cancellable plans. —Hurricanes on both coasts —Flexible bookings only
Getting around

Legs, times and prices

The classic loop runs anticlockwise: Caribbean, interior, Campeche and back along the south. ADO and the Maya Train cover all of it.

Cancún (CUN) → Valladolid 2 h $12 ADO The loop's opening trick: sleep the first night inland instead of on the coast, and start with the ruins. Valladolid → Mérida 2 h $10 ADO With a possible stop at Izamal halfway. The Maya Train covers the same leg. Mérida → Campeche 2 h 30 $16 ADO Frequent buses plus the train. The stop that separates an ordinary trip from a complete one. Campeche → Bacalar 5 h 30 $25 The long southern leg, via Escárcega by bus or train. Do it in daylight: the forest is part of the trip. Bacalar → Tulum → Cancún 3 h + 2 h $18 + $17 ADO The closing run up the 307, with whichever coastal stops you saved for last.

Reference prices in dollars gathered in 2025, per person, economy class. The Maya Train and ADO compete on most legs: compare timetables, because the train's frequencies are still thin.

Where to sleep

The four nights that shape the loop

See hotels →
From $50 Downtown Cancún The real city behind the hotel zone. For the first or last night near the airport without paying resort rates.
From $45 Valladolid The eastern staging post among the great ruins. For breaking the Caribbean-Mérida leg and an early Chichén Itzá start.
From $55 Mérida The interior's capital and the best transport hub. For three nights of cultural base at the loop's midpoint.
From $50 Campeche Coloured townhouses inside the city walls. For the night almost nobody plans and everyone recommends afterwards.
Before you book

What everybody asks

Fourteen days; twelve at a push. With seven, do not attempt the loop: pick half the peninsula — the Caribbean plus Valladolid, or Mérida and its orbit — and bank the rest. Racing the circuit is the most expensive way to see nothing.

If the fares allow it, fly into Cancún and out of Mérida or the reverse: you save the entire return leg. CUN is almost always cheaper, though, and then the closed loop pays for itself.

Not entirely yet: it is comfortable and the stations are new, but departures are few and some stations sit far from the town centres. Use it where the timetable fits and fall back on ADO where it does not.

The Gulf: Caribbean sargassum is a lottery in those months, and Progreso and Celestún have never met it. Save the Caribbean for winter, or accept a trip that may end up pool-and-cenote.

It is by some distance the calmest tourist region in the country, and the Yucatecan interior boasts minimal crime figures. Ordinary travel precautions apply: cash split up, official taxis and nothing flashy.

The trunk loop works perfectly by bus and train. A car earns its keep in two places: the Puuc Route with its haciendas, and the deep south towards Calakmul. Rent it for those stretches, not for the whole loop.