Sian Ka’an Lodge
Fly fishing at it’s best in the UNESCO-listed Sian Ka’an Biosphere Reserve
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Sian Ka’an Lodge sits inside the UNESCO-listed Sian Ka’an Biosphere Reserve on Ascension Bay — one of the Caribbean’s great mixed-species flats fisheries. Operated by Blue Safari Fly Fishing in partnership with the Keir family, the lodge continues the legacy of Grand Slam Ascension Bay Lodge with Blue Safari’s guest experience and reservation support. Punta Allen, a kilometre away, is widely regarded as the Atlantic permit capital of the world.
Twelve ocean-facing rooms and six in-house skiffs (more available on demand) sit steps from a private jetty — roughly 50 metres from the lodge — so anglers are on the water without delay. That setup puts you on the Big Four — permit, bonefish, tarpon, and snook — with immediate access to sight fishing on crystal-clear flats. The lodge runs on solar power inside the biosphere, partners with Punta Allen on conservation initiatives, and welcomes non-anglers with cenotes, Mayan history, birding, and beach time on the Boca Paila Peninsula.
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Sian Ka’an Lodge: Location & Geography
Sian Ka’an Lodge is on the Boca Paila Peninsula in the heart of Mexico’s Yucatan — the southern reach of Bahia de L’Ascencion, better known as Ascension Bay. The lodge sits inside the massive 1.3 million acre Sian Ka’an Biosphere Preserve, wild and virtually uninhabited except for the fishing villages at Punta Allen and Punta Herrera. The biosphere is home to over 100 species of mammals and more than 330 species of birds.
Protected by the Mesoamerican Barrier Reef, Ascension Bay offers miles of shallow flats, mangrove-rimmed lagoons, and white-sand beaches — ideal habitat for bonefish, permit, and tarpon. An angler landing all three in a single day has accomplished the coveted Grand Slam. Add snook for a Super Grand Slam. Ascension Bay remains one of the world’s premier mixed-species flats fisheries.
Days start with breakfast at the lodge, then two anglers per boat and guide typically leave the dock around 7:30 am for a full day on the water. Lunch is packed for the flats; dinner is back at the lodge, often on the deck with the day’s stories and a cold drink. Bonefishing is from the poled skiff or by wading — Ascension Bay has miles of firm-bottom wading flats. Resident bonefish are abundant; average size has increased over the years thanks to commercial fishing restrictions within the biosphere.
The Fishing at Sian Ka’an Lodge
Ascension Bay is a true mixed-species fishery. Most weeks you are chasing the Big Four — permit, bonefish, tarpon, and snook — with plenty of bonus shots at reef and edge species.
Permit
Available year-round. Ascension Bay fish average 12–14 pounds with trophies well beyond that. This is one of the Caribbean’s most celebrated permit fisheries — fish here often show and eat more willingly than permit in many other destinations.
Bonefish
Resident bonefish are abundant on firm wading flats and from the skiff. A perfect species to dial in your saltwater game — or to rack up shots when the permit are being permit.
Tarpon
Migratory tarpon typically arrive late March or April and fish through November. Juvenile tarpon hold in backcountry water year-round. From the skiff or in the mangroves, they deliver the classic jump-and-run show.
Snook
Year-round in brackish mangrove shorelines — abundant, often large, and frequently the trickiest of the four primary species. Technical fishing with explosive eats when you get it right.
Atlantic Grey Triggerfish
Opportunistic feeders on the ocean edge and shallow reefs. Tailing fish on skinny reefs are a foot-fishing treat; deeper fish are targeted from the skiff — a rewarding change of pace from the classic flats program.
Jack Crevalle & More
Jack crevalle, barracuda, sharks, snapper, ladyfish, tripletail, and reef species round out the week when conditions or ambitions shift. Grand Slam and Super Grand Slam days are realistic here.
Sian Ka’an Lodge: Accommodations & Lodge Life
Sian Ka’an Lodge sits on a secluded stretch of beach on the outskirts of Punta Allen, inside the UNESCO-listed biosphere reserve. Twelve ocean-facing rooms ring a pool and shared deck that looks straight out over the bay — small enough that guests and guides are on first-name terms from the first morning.
Rooms
Each room is fully air-conditioned with two king-size beds, a spacious en-suite bathroom with indoor and outdoor showers, minibar, and kettle. The lodge runs on 24-hour solar power inside the biosphere. Full housekeeping and laundry are included — everything a serious angler needs, nothing you have to think about twice.
The Lodge & Dock
A private jetty about 50 metres from the lodge puts you on the water without delay — six in-house skiffs with more available on demand. The communal palapa bar and restaurant overlook the Caribbean; the pool and deck are where the day’s fishing gets talked through over a cold drink. Snorkeling, kayaking, beach time, and eco tours are on the menu for non-anglers or off days.
Dining
Breakfast and dinner are served at the lodge; lunch is packed for the flats. The kitchen draws on traditional Mexican cooking and international touches, with ingredients sourced from Punta Allen and the surrounding region — fresh, refined, and as local as it gets. Once a week, taco night has become a lodge institution. Dine with the group or on your own schedule.
Guides & Operation
The guide team knows Ascension Bay intimately — a legacy carried forward under Blue Safari Fly Fishing and the Keir family partnership. Operated with Blue Safari’s guest experience and reservation support, the lodge continues the Grand Slam Ascension Bay tradition with a refreshed lodge program and hospitality standard.
A Typical Day at Sian Ka’an Lodge
- Morning: Breakfast at the lodge, then two anglers per boat and guide leave the dock around 7:30 am.
- On the water: Full day poling the flats, wading firm-bottom shorelines, or working mangrove edges — lunch packed on the skiff.
- Evening: Shower, cold drink on the deck, flies compared and tomorrow’s plan made over dinner in the palapa.
- Weekly rhythm: Taco night once a week; plenty of quiet beach time if you want a half-day off the water.
Sian Ka’an Lodge: Traveling With a Non-Angler?
Not everyone in your party has to chase permit. Traveling partners often explore the Mesoamerican Barrier Reef, cenotes, Mayan ruins, birding, and beach time while anglers are on the skiff — then everyone meets back at the lodge for dinner on the deck. Blue Safari offers fly fishing & leisure couple packages (shared or single skiff options); we can quote mixed itineraries — call or use the form below.
The lodge is open year-round. Standard packages run seven nights with six days fishing, but stays can be built to your length — extend when the permit are running hot, or compress the trip if your calendar is tight.
Getting There to Sian Ka’an Lodge
Sian Ka’an Lodge is approximately 25 miles from Tulum International Airport or 105 miles from Cancún International Airport. Round-trip road and boat transfers from Tulum, Cancún, or the Riviera Maya are included in package rates — then you are steps from the private jetty and your skiff. Helicopter transfers can be arranged for larger groups.
Sian Ka’an Lodge 2026 Rates
Most anglers book the 7-night / 6-day shared skiff package — two anglers per boat, enough time to work the species and find a rhythm with your guide. High-season shared skiff trips start at $6,360 per person (see tables below). Single occupancy, couple/leisure combinations, and custom lengths — call or email us; we will build the right fit.
Shared Skiff (most popular)
Seven nights, six guided days, two anglers per skiff. The classic Ascension Bay week — permit, bones, tarpon, and snook with time to chase what got away earlier in the trip.
Couple / Leisure & Custom
Shorter stays, single skiff, or angler + non-angler combinations — reef, cenotes, and culture days while you fish. Custom packages quoted on request.
High Season (October 1 – December 31, 2026)
| Length of Stay | Double Occupancy | Single Occupancy |
|---|---|---|
| 7 Nights Stay with 6 Days Fishing | $6,360 | Please call or email us (see below) |
| 6 Nights Stay with 5 Days Fishing | $5,475 | ↑ |
| 5 Nights Stay with 4 Days Fishing | $4,590 | ↑ |
| 4 Nights Stay with 3 Days Fishing | $3,705 | ↑ |
| 3 Nights Stay with 2 Days Fishing | $2,820 | ↑ |
Low Season (July 1 – September 30, 2026)
| Length of Stay | Double Occupancy | Single Occupancy |
|---|---|---|
| 7 Nights Stay with 6 Days Fishing | $5,520 | Please call or email us (see below) |
| 6 Nights Stay with 5 Days Fishing | $4,755 | ↑ |
| 5 Nights Stay with 4 Days Fishing | $3,990 | ↑ |
| 4 Nights Stay with 3 Days Fishing | $3,225 | ↑ |
| 3 Nights Stay with 2 Days Fishing | $2,460 | ↑ |
Rates are per person in USD$ and subject to change. 2027 rates TBD. Single occupancy — please call or email us below.
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Rates Include: Round-trip transfers (Tulum/Cancún/Riviera Maya); beachfront accommodation; three meals per day; non-alcoholic beverages; bar (beer, wine, spirits); guided fishing; rod and reel loan; fishing license; conservation levy; laundry; taxes.
Not Included: International airfare; Cancún hotel-zone transfers; travel insurance; premium alcohol; phone; tackle; gratuities for guides and lodge staff.
Book now, get a quote, or chat with us about Mexico fly fishing!
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