Fly fishing at its best in the UNESCO-listed Sian Ka’an Biosphere Reserve
Sian Ka’an Lodge
UNESCO Reserve
Ascension Bay permit
Blue Safari / Keir
Overview
Sian Ka’an Lodge sits inside the UNESCO-listed Sian Ka’an Biosphere Reserve on Ascension Bay — the southern reach of Bahia de Ascensión on Mexico’s Yucatán. Twelve ocean-facing rooms and in-house skiffs sit steps from a private jetty, with Blue Safari and the Keir family running the program. Punta Allen, a kilometre away, is the Atlantic permit capital.
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.
Book now, get a quote, or chat with us about Mexico fly fishing at Sian Ka’an Lodge.
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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. Protected by the Mesoamerican Barrier Reef, the bay offers miles of shallow flats, mangrove-rimmed lagoons, and white-sand beaches.
Permit are available year-round. Ascension Bay fish average 12–14 pounds with trophies well beyond that — fish here often show and eat more willingly than permit in many other destinations. Resident bonefish are abundant on firm wading flats and from the skiff. Migratory tarpon typically arrive late March or April and fish through November; juvenile tarpon hold in backcountry water year-round. Snook are year-round in brackish mangrove shorelines.
Days start with breakfast at the lodge, then two anglers per boat and guide typically leave the dock around 7:30 am. Lunch is packed for the flats. Bonefishing is from the poled skiff or by wading. Atlantic grey triggerfish, jack crevalle, barracuda, sharks, snapper, and reef species round out the week. Grand Slam and Super Grand Slam days are realistic here.
Accommodations & Amenities at Sian Ka’an Lodge
12 ocean-facing rooms
24-hour solar power
Indoor + outdoor showers
Private jetty 50 metres
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.
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.
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.
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. Once a week, taco night has become a lodge institution.
The guide team knows Ascension Bay intimately — a legacy carried forward under Blue Safari Fly Fishing and the Keir family partnership.
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.
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.
Sian Ka’an Lodge 2026–27 Rates
Most anglers book the 7-night / 6-day shared package — two anglers per boat. The 2026–27 rates are one price all year. Seven nights shared is $6,990 per person, including reserve levy and fishing licence (see table). Host sharing a room and skiff: $1,800 (4-night) / $2,790 (7-night). Single room + skiff, couple/leisure, and custom lengths — call or email us.
2026-2027 Rates for Sian Ka’an on Ascension Bay
Contact us for seasonal discounts, special offers or promotional pricing
| Length of Stay | Shared package + levy (USD pp) | Single room + skiff + levy (USD pp) | Notes |
|---|---|---|---|
| 7 Nights | $6,990 | $10,930 | Package + reserve levy and fishing licence. One rate all year (Blue Safari 2027). |
| 6 Nights | $6,005 | $9,410 | |
| 5 Nights | $5,020 | $7,890 | |
| 4 Nights | $4,035 | $6,370 | |
| 3 Nights | $3,050 | $4,850 | |
| Host supplement (host shares room + skiff) | $1,800 (4-night) | $2,790 (7-night) | Transfers, park fees, drinks. Single-basis host = upgrade fees. |
| Payment terms | 50% deposit | 50% 60 days prior | Blue Safari terms from 2027. |
Rates are per person in USD and subject to change. One rate all year for 2026–27 (Blue Safari, Aug 2026). Totals include reserve levy and fishing licence. Deposit 50%; balance 60 days prior. Host sharing room + skiff: $1,800 (4-night) / $2,790 (7-night).
Our Services are FREE
Included in package
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.
Getting There
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.
Fly fishing Sian Ka’an
in ASCENSION BAY, MEXICO
Permit
(Trachinotus falcatus)
Ascension Bay is one of the Caribbean’s most celebrated permit fisheries. Fish average 12–14 pounds, show and eat more willingly than in many other destinations, and share the flats with bonefish, tarpon, and snook — the Big Four in one week.
Permit
Bonefish
Tarpon
Snook · triggerfish · jacks
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Book now, get a quote, or find out more about fly fishing at Sian Ka’an Lodge.