Marriott Keeps Adding New St. Regis Resorts Around the Caribbean — And Now It Just Opened One Near Cancun

The St. Regis Costa Mujeres Resort, Cancún has opened in the Mexican Caribbean, bringing nine restaurants, a rooftop Japanese concept and the brand’s signature butler service to a quiet enclave north of the city — the newest move in St. Regis‘s fast-moving Caribbean expansion.

North of Cancún, past the resort towers and the cruise crowds, the coastline goes quiet. Costa Mujeres is a low, mangrove-lined stretch of the Mexican Caribbean fronting white sand and the world’s second-largest barrier reef, and it has spent years as one of the region’s most discreet luxury enclaves.

That quiet just gained a marquee tenant. The St. Regis Costa Mujeres Resort, Cancún has opened on the beach here, a 213-key retreat that marks the storied brand’s newest Caribbean flag — and its latest move in a regional expansion that has been anything but slow.

The arrival is the clearest sign yet of where the brand is placing its bets. St. Regis has been moving across the Caribbean at a striking clip, and Costa Mujeres now joins recent openings in Bermuda, the Dominican Republic and the Riviera Maya, with more still to come.

A Caribbean expansion moving at full speed

The breadth of that push is hard to overstate. St. Regis has opened the St. Regis Bermuda Resort in historic St. George’s, the St. Regis Cap Cana Resort on the eastern coast of the Dominican Republic, and the St. Regis Kanai Resort in Mexico’s Riviera Maya.

The pipeline runs deeper still. The St. Regis Aruba and a planned St. Regis in Turks and Caicos sit among the properties on the way, giving the brand one of the most aggressive luxury footprints in the region.

That cadence stands out even by the standards of a brand on the move. Few luxury names have concentrated this many openings across the Caribbean and the Mexican Caribbean over so short a span.

Costa Mujeres slots neatly into that strategy. It gives St. Regis a foothold in one of Mexico’s fastest-rising luxury markets, a few miles and a world away from the wall of high-rises that defines the Cancún hotel zone (although Cancun’s hotel landscape has been changing, to be fair).

Why Costa Mujeres

The opening comes at a telling moment for the destination. Costa Mujeres has quietly become one of Mexico’s most coveted development addresses, prized for the privacy and seclusion that the busier strips of Cancún and the Riviera Maya can no longer promise. It’s been called the “New Cancun,” and it’s easy to see why.

The wider Mexican Caribbean has become a magnet for luxury flags. A run of high-end brands has pushed north and south of Cancún in recent years, chasing the affluent travelers who once defaulted to the Riviera Maya.

A St. Regis does not arrive casually. The brand built its name on grandeur and discretion, and its choice of Costa Mujeres reads as a vote of confidence in an enclave still early in its luxury story.

White sand beaches, crystalline water, protected mangroves and the great barrier reef offshore give the resort a backdrop few new properties can claim.

The enclave sits near the historic El Meco archaeological site and a short drive from Cancún’s airport, pairing a sense of remove with genuine reach.

A design rooted in Maya heritage

The resort comes from Sordo Madaleno, the acclaimed Mexican architecture firm, which rendered it as a composition of glass and concrete that tracks the curve of the coastline. The design reinterprets local Maya mythology and craft through a contemporary lens rather than a literal one.

The references run deep through the property. Intricate stonework nods to the nearby ancient Maya port of El Meco, while sculptural lighting evokes the celestial symbolism of the deities Ixchel and Itzamná.

In the lobby, a dramatic chandelier is built to capture the movement of the Caribbean Sea and the flow of the region’s sacred cenotes. Woven textures, bentwood furnishings, hand-painted murals and brass accents carry the artistry of the Yucatán Peninsula through the interiors, down to quiet references to the sacred Ceiba tree.

The result is a property that feels distinct from the all-inclusive towers nearby. The architecture reaches for restraint and texture rather than spectacle, a quieter register than much of the surrounding coast.

213 rooms, butler service and the Caroline Astor Suite

The resort holds 163 guestrooms and 50 suites, many with private balconies angled toward the Caribbean Sea and the lush landscape behind it. The top accommodations include the Caroline Astor Suite and a Presidential Suite, both designed as residential-style retreats for the brand’s most demanding guests.

Every stay comes with the signature St. Regis Butler Service, the brand’s century-old calling card. It is the detail that has defined the name since the beginning, built to meet a guest’s request before it is spoken.

That heritage traces to John Jacob Astor IV, who opened the original St. Regis in New York more than a century ago. The brand still frames each property around his philosophy of what it calls Live Exquisite.

The room count places it among the larger St. Regis resorts in the region. At 213 keys, the property carries the scale to host weddings and groups without surrendering the intimacy the brand trades on.

Nine restaurants, a rooftop sushi concept and a Mexican grill

Dining is where the resort makes its loudest statement, spanning nine distinct food and beverage outlets. The culinary program leans on local ingredients and traditions executed with global technique.

Costa Coral, the all-day venue, runs time-honored Mexican cooking through a contemporary filter, while Fish Market centers on Caribbean-style seafood and the fresh local catch. Palmare Grill brings Mexican coastal cuisine to the sand.

The headliner is Shami, a rooftop concept that fuses Japanese technique with the ingredients of the Mexican Caribbean. Cocktails and the brand’s social rituals anchor the gathering spaces at The St. Regis Bar and Jack’s Club.

The scale of the food program is itself a statement. Nine outlets is a heavy roster for a resort of this size, a signal that St. Regis intends the property to be a dining destination in its own right.

A spa with 16 treatment suites and a thermal circuit

Wellness sits at the center of the property. The St. Regis Spa is built around a thermal circuit with aromatic steam, hydrotherapy experiences and a tranquil Iridium Lounge, alongside 16 treatment suites.

Two of those are Signature Spa Suites, each with a private Jacuzzi and its own relaxation area. Treatments pair internationally known skincare with traditional Mexican healing ingredients, led by a signature Sea Salt treatment drawn from the Maya reverence for the mineral.

Beyond the spa, guests have an oceanfront infinity pool and a fitness center with sweeping sea views. A Kids Club and dedicated recreation spaces handle families and multigenerational groups.

Champagne sabrage, afternoon tea and a ballroom for weddings

The resort also imports the brand’s signature rituals, from Afternoon Tea to the theatrical Evening Champagne Sabrage. Locally inspired sunrise ceremonies and coral-reef restoration excursions round out a calendar built to tie guests to the destination.

The resort leans into its setting through conservation as well. Guest excursions support coral-reef restoration along the barrier reef offshore, connecting the property to the ecosystem that frames it.

The event side is substantial. The property carries roughly 9,687 square feet of indoor and outdoor space, anchored by the Astor Ballroom and aimed squarely at weddings, celebrations and milestone gatherings.

Hands-on workshops, artisanal collaborations and live music fill out the social programming. The aim, throughout, is a sense of place that reaches beyond the beach and the pool.

Who the resort is for

The early read is that the resort will draw several kinds of travelers at once. Couples and honeymooners get the seclusion and the butler service, while the ballroom and the beach make it a natural fit for destination weddings.

Families have the Kids Club and the multigenerational spaces, and wellness-minded guests have the thermal circuit and the spa’s sixteen suites. The nine restaurants give all of them a reason to stay on property rather than venture out.

What ties the audience together is the address. Costa Mujeres pairs the privacy of a remote enclave with the access of a destination minutes from one of the busiest airports in Latin America.

A vote of confidence in the Mexican Caribbean

Federico Greppi, who leads Marriott International across the Caribbean and Latin America, framed the opening as a milestone for both the brand and the destination. St. Regis, he said, has long “defined where luxury chooses to be.”

The brand’s decision to plant a flag here reads as a bet that the enclave will become a premier luxury market rather than a quiet alternative to Cancún. But it also competes directly with a resort that’s not that far away — the St Regis in Kanai, which opened its doors in 2023. It’s not yet clear how the brand plans to distinguish the two — or if they will cannibalize each other’s markets.

The bottom line here

With the doors now open, Costa Mujeres has the marquee name it had been missing, and the Mexican Caribbean has another reason to pull luxury travelers north of Cancún. The reef, the white sand and the quiet were always here; now there is a St. Regis on the beach to match them.

The opening also says something clear about the brand’s ambitions in the region. With Bermuda, the Dominican Republic and the Riviera Maya already flying the flag, Aruba opening earlier this year and Turks and Caicos on the horizon, St. Regis is assembling a Caribbean footprint to rival anyone’s — and The St. Regis Costa Mujeres Resort, Cancún is its newest, and arguably most striking, chapter.

So what about the cost? 

I found rates at the new St. Regis in July for about $664 this weekend. What does that get you? A deluxe one-king guest room with what Marriott calls a “mangrove view.” There aren’t a ton of other accommodation options available right now. 

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