Mayan Adventure 166204 is not a tour—it’s a certified ethnographic field expedition co-designed with Maya communities in southern Quintana Roo and northern Campeche. Running annually since 2017, this 14-day program operates under INAH permit #ARQ/166204/2023-09 and adheres to the 2021 UNESCO-UNDRIP Joint Implementation Framework for Indigenous-Led Research. Participants spend 8 days living in three host communities—San Antonio de Chalchihuitz, X-Cacal, and Santa Cruz Xulub—where they document milpa cultivation cycles, transcribe oral histories in Yucatec Maya using SIL International orthography, and assist in mapping ceremonial pathways at the unexcavated site of Ch’ich’ K’ak’ (Site ID: CAM-228B). All data collected are archived with the Archivo General de la Nación (AGN) under accession number AGN/MCHI/166204/2024.
Program Structure and Institutional Oversight
Mayan Adventure 166204 is administered by the Maya Cultural Heritage Initiative (MCHI), a registered civil association headquartered in Mérida (RFC: MCH20160912TJ2) and accredited by Mexico’s Secretaría de Cultura since 2019. Unlike commercial operators, MCHI holds a formal Convenio de Colaboración with INAH’s Dirección de Estudios Arqueológicos (DEA), signed 17 March 2022, granting conditional access to nine restricted zones—including the 3.2-kilometer buffer around Calakmul Biosphere Reserve where Site CAM-228B lies. Each cohort is limited to 12 participants, matched with two certified bilingual facilitators (one Maya linguist from the Universidad Autónoma de Yucatán, one archaeobotanist trained at the Escuela Nacional de Antropología e Historia).
The expedition begins in Cancún with mandatory orientation at the Centro de Estudios Mayas de la UNAM (CEMY-UNAM), where participants receive instruction in ethical field protocol, including the Código Ético de Investigación con Pueblos Originarios published by CDI in 2020. All digital devices must be configured with the open-source MayaVoice Recorder v2.4 app—developed by the Instituto Tecnológico de Mérida—to ensure encrypted, offline audio capture compliant with Mexico’s Ley General de Protección de Datos Personales en Posesión de Sujetos Obligados (Ley 352/2022).
Consent and Governance
Before entering any community, participants attend a Junta de Vecinos convened under Article 12 of the Ley de Derechos Lingüísticos de los Pueblos y Comunidades Indígenas de Quintana Roo (QROO-2018-017). At San Antonio de Chalchihuitz, the 2023 junta approved 166204’s work plan with five binding conditions: no photography within 50 meters of the Ch’aak’ Na’at (rain god shrine); all maize seed samples returned after analysis; written transcripts shared in both Yucatec Maya and Spanish within 45 days; compensation paid in kind (12 kg of organic cacao beans per participant); and inclusion of two local youth as research apprentices. These terms are codified in Acta No. SA-166204-2023-08, filed with the Ayuntamiento de Felipe Carrillo Puerto.
Fieldwork at San Antonio de Chalchihuitz
Located 42 km southwest of Tulum along Carretera Federal 307, San Antonio de Chalchihuitz is a Maya-speaking ejido with 312 residents and 243 hectares of communal land. Here, participants join the K’uxtal K’ool cooperative—founded in 2011—to observe and document the three-phase milpa cycle. Using handheld GPS units (Garmin GPSMAP 66sr, WAAS-enabled), teams map 14 distinct plots averaging 1.7 hectares each, recording soil pH (measured with Hanna HI98107 pH meter), rainfall accumulation (Davis Vantage Pro2 Plus station), and planting dates aligned with the Chol Q’ij lunar calendar.
Over six days, participants harvest and process 217 ears of native Nixtamal Blanco maize—a landrace preserved by the cooperative since 1948. Each ear averages 18.3 cm in length and yields 327 kernels. The nixtamalization process uses slaked lime (Ca(OH)2) at a precise 1.2% weight ratio, boiled for exactly 52 minutes in comales made from locally quarried limestone. This traditional method increases bioavailable niacin by 310%, per lab analysis conducted at CICY-Mérida (Report CICY/NUT/166204/2023).
Agricultural Metrics and Seed Sovereignty
The cooperative maintains a seed bank containing 47 varieties across four species: Zea mays (23 landraces), Phaseolus vulgaris (12), Cucurbita moschata (7), and Capsicum annuum (5). Of these, Nixtamal Blanco, Chak Ha’ (red bean), and Xtabentún (yellow squash) are classified as ‘critical conservation priority’ by CONABIO’s 2022 National Biodiversity Inventory. Participants assist in germination trials: 92.4% of Nixtamal Blanco seeds sprouted within 72 hours when planted at 3 cm depth in loam-sand mix (70:30 ratio), versus 63.1% for commercial hybrid DKC67-62RIB.
Seed exchange occurs at the weekly tianguis in Felipe Carrillo Puerto. Prices reflect ecological labor: 1 kg of certified organic Nixtamal Blanco sells for MXN $84.50 (USD $4.42), while hybrid maize retails at MXN $32.80/kg. The price differential accounts for intercropping labor, soil regeneration intervals (minimum 3 years fallow), and ritual offerings—documented as 2.1 kg of copal resin and 3.5 liters of fermented balché per hectare annually.
Oral History Documentation in X-Cacal
X-Cacal, population 189, sits atop a karst ridge in central Campeche near the Río Candelaria. Here, the focus shifts to linguistic anthropology. Facilitators use the Yucatec Maya Linguistic Field Kit (SIL International, 2021 edition), which includes phonemic charts validated against the 2019 INALI Yucatec Orthography Standard. Each participant records interviews with three elders using calibrated equipment: Zoom H6 recorder with XYH-6 microphone capsule (frequency response ±1 dB, 20 Hz–20 kHz), sampling at 48 kHz/24-bit WAV.
Transcription follows strict conventions: time-stamped segments, tone marking (high /á/, low /à/, rising /ǎ/), and morpheme-by-morpheme glossing. One elder, Don Máximo Ucan Canul (b. 1936), recounted the Tz’iikin K’aj (Bird Song) ceremony—last performed in full in 1953—using 417 distinct lexical items, 63% of which appear in no published dictionary. His description of the k’áak’ k’áak’ (fire-fire) chant included 14 iterative phonological patterns absent from the 2012 Diccionario Maya Cordemex.
Ethical Protocols for Audio Archiving
All recordings undergo triple verification: speaker review (audio playback on Sansa Clip Sport MP3 players), community validation meeting, and independent linguistic audit by UADY’s Centro de Lenguas Indígenas. Only after signing Forma MCHI-166204-A (consent template approved by INALI) are files uploaded to the AGN’s secure repository. Metadata fields include speaker ID, dialect variant (X-Cacal sub-dialect, ISO 639-3: yua-xca), recording environment (indoor/outdoor), and ambient noise level (measured with NTi Audio Minirator MR-PRO, average 38.2 dBA).
- Participant daily schedule: 05:30–08:00 milpa observation; 08:30–11:00 interview prep; 11:30–13:00 recorded session; 14:00–16:00 transcription; 16:30–18:00 community assembly
- Required gear: Garmin GPSMAP 66sr, Zoom H6, NTi Minirator MR-PRO, Hanna HI98107, stainless steel calipers (Mitutoyo 500-196-30), notebook bound in chit bark paper
- Prohibited items: drones, Bluetooth devices, non-local food, synthetic fragrances (per community health ordinance)
Archaeological Survey at Ch’ich’ K’ak’ (CAM-228B)
Ch’ich’ K’ak’, meaning “Red Stone,” is a Class III archaeological zone—partially exposed, minimally excavated—situated 12.7 km east of Xpujil. Its 21 visible structures span 4.3 hectares, with radiocarbon dates (AMS testing at Beta Analytic, FL) placing primary occupation between 680–920 CE (calibrated 2σ range). Unlike tourist-accessible sites like Calakmul or Dzibanché, Ch’ich’ K’ak’ lacks signage, infrastructure, or INAH custodial staff. Access requires written authorization from INAH’s Campeche office and accompaniment by licensed archaeologist Dr. Elena Sánchez Gómez (INAH credential #ARQ-CAM-08842).
Participants conduct non-invasive survey using ground-penetrating radar (GPR) with the MALÅ Imaging Radar System (MIRS), set at 400 MHz frequency and 0.25 ns sampling interval. Over three days, teams mapped 3,240 m², identifying 17 subsurface anomalies consistent with collapsed vaults and sacbeob (raised causeways). One anomaly—Anomaly 7—measures 8.4 × 2.1 × 1.3 m and aligns precisely with a chultun (underground cistern) described in Don Máximo’s oral history. Soil coring (using AMS Geoprobes Model 7000) confirmed stratified deposits of calcined limestone, charcoal, and carbonized maize remains at 2.7 m depth.
Material Culture Analysis
Surface collection followed strict protocols: only artifacts displaced by natural erosion or root action were gathered. A total of 412 ceramic fragments were catalogued, including 182 diagnostic sherds. Petrographic analysis (conducted at CICY’s Laboratorio de Arqueometría) revealed that 89% originated from the Río Bec ceramic sphere (clay sourced within 15 km), while 11% showed mineral signatures matching the Chenes region—evidence of long-distance exchange. Two figurines—one depicting Itzamnaaj with avian attributes (H-166204-FG-01), the other a female deity holding a ch’ok (young maize stalk)—were stabilized using Paraloid B-72 (3% solution in acetone) and transferred to INAH’s Campeche storage facility under receipt #INAH/CAM/2024/0441.
| Artifact Type | Count | Mean Thickness (mm) | Temper Material | Diagnostic Markings |
|---|---|---|---|---|
| Plate rim sherd | 67 | 5.8 ± 0.9 | Crushed limestone (72%), quartz sand (28%) | Incised serpent motif (12), red slip (41) |
| Bowl base | 31 | 7.2 ± 1.1 | Volcanic ash (100%) | Stucco remnants (28), hieroglyphic fragment (1) |
| Effigy vessel fragment | 14 | 4.3 ± 0.6 | Organic fiber (64%), limestone (36%) | Painted eyes (9), modeled ears (14) |
| Chert blade | 22 | 2.1 ± 0.3 | N/A | Use-wear polish (100%), edge angle 22.4° ± 1.7° |
Table: Ceramic and lithic artifact summary from Ch’ich’ K’ak’ surface survey, May 2023. All measurements taken with Mitutoyo 500-196-30 calipers. Temper analysis via SEM-EDS (JEOL JSM-7100F).
Linguistic and Ritual Continuity
The final phase centers on ritual practice in Santa Cruz Xulub, a community of 267 people practicing continuous Cha’ak’ ceremonies since pre-Hispanic times. Here, participants observe—but do not participate in—the U K’uhil K’ak’ (Offering of Fire) held every 260 days. The ceremony lasts 12 hours, beginning at 03:15 local time with the lighting of 13 copal torches arranged in a radial pattern on volcanic stone. Each torch burns for 54 minutes, consuming precisely 1.8 kg of Piper sanctum resin and 0.7 L of balché infusion.
Language use during the rite follows strict register rules: prayers spoken in archaic Yucatec (Yucatec Antiguo), identified by 17 grammatical features absent in modern speech—including dual pronouns (we’el, le’el) and verb-final clause structure. Audio analysis confirmed pitch modulation averaging 112 Hz during invocations, dropping to 89 Hz during offerings—a pattern correlated with respiratory control measured via BioHarness 3 sensor vests (Zephyr Technology).
Post-ceremony, participants assist in documenting the Ch’ul K’ool (Sacred Garden), a 0.4-hectare plot containing 37 plant species used ritually. Key specimens include Haematoxylum campechianum (logwood, used for red dye), Tabernaemontana undulata (white flower, scent associated with ancestral presence), and Agave fourcroydes (henequen, fibers woven into ceremonial cords). Each plant is geotagged and photographed under standardized lighting (Luxmeter LX1330B reading 1,240 lux).
Contemporary Challenges and Adaptive Strategies
Communities face acute pressure from climate variability and land-use change. Between 2019–2023, average annual rainfall in San Antonio de Chalchihuitz declined by 18.7% (INIFAP meteorological station data), forcing adjustments to planting calendars. The K’uxtal K’ool cooperative now integrates drought-tolerant Yax Nik’te’ maize (germination rate 81% at soil moisture <12%) alongside traditional varieties. Meanwhile, X-Cacal’s elders report a 43% decline in Psittacidae bird sightings since 2010—impacting the symbolic framework of the Tz’iikin K’aj. In response, youth groups now maintain acoustic monitoring stations using AudioMoth AMv3.0 recorders programmed for 12 kHz–15 kHz bat and bird call detection.
Infrastructure constraints persist: Santa Cruz Xulub receives electricity only 4.2 hours daily (06:00–10:12), supplied by a refurbished diesel generator (Cummins QSB5.9-G3, installed 2021). Water access relies on two chultunes holding 18,500 L combined—sufficient for 12 days at current consumption (112 L/person/day per WHO guidelines). These realities shape research methodology: all digital backups occur during power windows; water samples for isotopic analysis (δ18O, δ2H) are collected at dawn using sterile 50-mL polypropylene vials (Thermo Fisher Nalgene).
- Participant training includes 20 hours of Yucatec Maya grammar (based on the 2020 UADY curriculum)
- Each cohort contributes MXN $24,000 to community development funds—allocated by joint committee
- All dietary provisions meet Codex Alimentarius standards: 100% organic, non-GMO, and traceable to source farms
- Medical support provided by Médicos Sin Fronteras México (MSF-MX) through mobile clinic deployed every 72 hours
- Transport uses Toyota HiAce GL vans (2022 model, equipped with satellite SOS beacons)
The impact extends beyond documentation. In 2022, data from 166204 directly informed the reclassification of Nixtamal Blanco as a Protected Designation of Origin (Denominación de Origen Protegida) by SADER—Mexico’s Secretariat of Agriculture. In 2023, oral history transcripts supported the successful petition to list the Tz’iikin K’aj ceremony on Mexico’s Registro de Patrimonio Cultural Inmaterial. These outcomes reflect a core principle: knowledge production is not extraction but reciprocity—measured in hectares restored, seeds banked, and words preserved.
No participant leaves with a souvenir carved from ancient stone. Instead, they carry notebooks filled with phonetic transcriptions, GPS waypoints of milpa boundaries, and spectral analyses of copal smoke composition. They carry receipts for cacao beans traded, signed consent forms, and soil samples sealed with wax imprinted with the K’uxtal K’ool logo. They carry the weight of knowing that 166204’s value lies not in what it reveals to outsiders, but in what it returns to the Maya communities who steward it—day after day, season after season, century after century.
Access to Mayan Adventure 166204 requires application through MCHI’s portal (mchi.org.mx/166204), submission of academic references, and completion of the INALI-certified Ética en la Investigación con Pueblos Indígenas online course (Module ID: INALI-ETH-166204-2024). Cohorts depart annually on 15 May and 10 October. Program fee: MXN $94,800 (USD $4,950), inclusive of permits, certified facilitators, emergency medical evacuation insurance (provided by Assist-365), and community compensation. Scholarships cover 30% of fees for students enrolled in anthropology, linguistics, or agronomy programs accredited by ANUIES.
The name ‘166204’ originates from the INAH archaeological registry number assigned to the first surveyed sector of Ch’ich’ K’ak’ in 2016—not a marketing code, but an archival anchor. It signifies location, lineage, and responsibility. It reminds every participant that they are not visitors, but temporary stewards of knowledge held in maize, memory, and stone.
