Mary ToursMérida · Yucatán

Comparisons

Celestún or Río Lagartos: where to see flamingos from Mérida

Both are biosphere reserves with flamingos, but which is better depends on the season. CONANP recommends Celestún from November to February, when flamingos and migratory birds are most numerous; toward summer, many move to Ría Lagartos, Mexico's main nesting site. Celestún is closer to Mérida and pairs with a beach afternoon; Río Lagartos is further and adds the pink water of Las Coloradas.

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Quick comparison

CelestúnRío Lagartos
LocationWest coast, on the Campeche borderEast coast, near Quintana Roo
Distance from MéridaAn hour and a halfAlmost three hours
ReserveRía Celestún, created in 2000, 81,482 haRía Lagartos, created in 1999, 60,347 ha
Best flamingo seasonNovember to February, according to CONANPToward summer, nesting season
AlsoFreshwater spring, mangrove tunnel, beach afternoonLas Coloradas, Cancunito beach, crocodiles, mud bath
Type of dayMedium, relaxedLong

How flamingos move

The Caribbean flamingo ranges along the peninsula's coast and uses Ría Celestún and Ría Lagartos to feed and rest. According to CONANP, Mexico's protected areas commission, the largest regional concentration in winter is between Ría Celestún and Los Petenes, and toward summer they move to Ría Lagartos and Yum Balam. Exactly where they nest can shift between Ría Lagartos, Ría Celestún and San Crisanto depending on the weather.

CONANP's regional program recorded more than 154,000 chicks hatched and banded more than 7,000 birds between 1999 and 2024; those bands have shown Yucatán flamingos traveling as far as the United States, Cuba, the Bahamas and the Cayman Islands.

Choose Celestún if…

  • You're traveling between November and February.
  • You'd like a shorter day with less driving.
  • You want to combine a boat ride with a long beach afternoon.

Choose Río Lagartos if…

  • You're traveling in spring or summer.
  • You'd love to see the pink water of Las Coloradas on the same day.
  • You're interested in crocodiles and the estuary's variety of birds.

At both, sightings depend on the day and can never be guaranteed. Ría Celestún's rules require keeping at least 50 meters from the flamingos; respecting that distance is what keeps them coming back.

Fun facts

  • Flamingos banded in Yucatán have been spotted in the United States, Cuba, the Bahamas and the Cayman Islands.
  • CONANP recorded more than 154,000 flamingo chicks hatched between 1999 and 2024.
  • A flamingo's pink color comes from its food.
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Related tours

Celestún and the pink flamingos

Nature · 9 h

Celestún and the pink flamingos

The largest flamingo colony in North America

from $1,600 MXN per person

See itinerary

8:00 AM – 5:00 PM · daily

  1. 8:00 AM Departure from the office — An hour and a half west, out to the port.
  2. 9:30 AM Boat ride — Flamingo and bird watching, the mangrove tunnel, the freshwater spring and the Maya bath on the sandbar.
  3. 11:00 AM Lunch by the beach — Fish, octopus or shrimp from the gulf, at a table facing the sea.
  4. 1:00 PM Free time on the beach — Almost three hours to swim, walk the shore or do nothing at all.
  5. 4:00 PM Back to Mérida — Arriving around five.

Included: Transport, Guide, Boat ride, Lunch from a set menu

Not included: Drinks

Las Coloradas and Río Lagartos

Nature · 12 h

Las Coloradas and Río Lagartos

Genuinely pink lagoons, and flamingos in the estuary

from $1,400 MXN per person

See itinerary

7:00 AM – 8:00 PM · daily

  1. 7:00 AM Departure from the office — Almost three hours to the north coast, with a stop halfway.
  2. 9:50 AM Las Coloradas — A guided walk beside the pink, white and orange pools of the salt works. No swimming: it is a protected area.
  3. 11:00 AM Cancunito beach — A rustic beach inside the reserve, calm water and hardly anyone around.
  4. 12:30 PM Boat ride through the estuary — Channels through the mangroves, flamingo watching areas, crocodiles in their habitat and the mineral mud bath.
  5. 2:15 PM Lunch in Río Lagartos — Fresh fish, ceviche, octopus or tikin xic on the waterfront of the fishing village.
  6. 4:15 PM Back to Mérida — Nearly four hours back, arriving around eight.

Included: Transport, Guide, Boat ride, Lunch from a set menu

Not included: Las Coloradas entrance, Drinks

Transfer to Celestún

Transfers · 10 h

Transfer to Celestún

We drive you to the estuary, wait for you and bring you back

from $2,550 MXN per vehicle

Transfer to Las Coloradas and Río Lagartos

Transfers · 11 h

Transfer to Las Coloradas and Río Lagartos

The pink lagoons and the beach, with the van at your disposal

from $2,850 MXN per vehicle

Frequently asked questions

Where are there more flamingos, Celestún or Río Lagartos?

It depends on the season: in winter they gather more in Celestún; toward summer they move to Ría Lagartos.

Which is closer to Mérida?

Celestún, an hour and a half away; Río Lagartos is almost three hours.

Can you see Las Coloradas from Celestún?

No, Las Coloradas is next to Río Lagartos, on the east coast.

How far should you stay from the flamingos?

Ría Celestún's rules require at least 50 meters.

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Book with a discount

Bacalar, Isla Mujeres and Tulum with a per-person coupon. Groups of 4 or more.

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Sources

  1. Ría Celestún Biosphere Reserve — CONANP (Spanish) (2026-10-23)
  2. Ría Lagartos Biosphere Reserve — CONANP (Spanish) (2026-10-23)
  3. The pink flamingo on the Yucatán Peninsula — CONANP (2025, Spanish) (2026-10-23)
  4. Caribbean flamingo migration — CONANP (Spanish) (2026-10-23)

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