Riviera Maya (Quintana Roo) · about 13 km from Tulum
Pedrín Fenómeno
- Max depth17 m (56 ft)
- CertificationFull cave
- Water temperature≈ 24–25 °C (75–77 °F)estimated, no reports yet
- SpecialExperienced divers
Diving and fills
Dive here with
Fills nearby
- ProTec TulumAir, EAN32, O₂ up to 200 bar, trimix on request (booster); Sofnolime 797 always in stock
- Ko’ox Diving (Tulum)Air, nitrox, O₂ and helium mixes (He about US$2/cf)
- Third Dimension DivingEAN32, HP O₂, deco gases and any trimix (booster); Sofnolime 797 and Intersorb; prefilled trimix bailout for rent
What it looks like
20260318 - Cenote Pedrín Fenómeno Cenote Pedrin Fenomeno and White River Cenote Fenomeno – Tulum, Mexico | Ice Age Fossil Cave Cenote "Fenomeno & Concha" Cave Diving / Tulum, Mexico
All 4 videos and posts
Videos and posts
From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.
20260318 - Cenote Pedrín Fenómeno Cenote Pedrin Fenomeno and White River Cenote Fenomeno – Tulum, Mexico | Ice Age Fossil Cave Cenote "Fenomeno & Concha" Cave Diving / Tulum, Mexico
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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.
The dive
The water in Pedrín Fenómeno is always clear. To the left after the entrance there is a Maya vase, and a hidden jump leads to a bone site: touch nothing there.
Part of Sistema Sac Actun. Also in this system: Dos Ojos, The Pit (El Pit), Taak Bi Ha, Nicte-Ha, Pet Cemetery (Cenotes Sac Actún), Dreamgate, Nohoch Nah Chich, Casa Cenote (Manatí), Gran Cenote, Calimba (Kalimba), Dos Palmas, Otoch Ha (Nariz), La Concha, Ho-Tul / Cuzan Nah, Outland, Chun-Ya
Profile and sections
The water in Pedrín Fenómeno is always clear. To the left after the entrance there is a Maya vase, and a hidden jump leads to a bone site: touch nothing there. Further on come several Ts: 600 m to an unnamed cenote, 1,200 m to White River Cenote (blue water) and 1,600 m to another cenote. There is also a jump to La Concha.
The cave belongs to Sac Actun–Nohoch and is connected to Aktun Hu. It is all part of Sistema Sac Actun (Maya: ‘white cave’): 379.6 km surveyed, down to -119.2 m (QRSS, Jan 2025).
- Depth and profile
- Main line about -10 m; side pit with megatherium bones about -17 m
- Configuration
- Roomy upstream passages; downstream tight and uninviting
- DPV: DPV possible (estimate)
- Wide upstream lines to cenotes 0.6–1.6 km away could suit a scooter; downstream tight; no DPV source
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 17 m (trimix or deco may be needed)
- Experienced divers only
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
Furthest cave on the Nohoch road (past Nohoch); pickup/4x4, small rental car not advised. Dilapidated bridge and collapsed stairs: enter left or right along the shore into a 2–3 m pond. Non-commercial, no facilities; often nobody around to collect money.
Around Pedrín Fenómeno
Fills3 fill stations · nearest 12 km
ProTec Tulum
Av. Satélite / Calle Tun-Kul, Tulum
Air, EAN32, O₂ up to 200 bar, trimix on request (booster); Sofnolime 797 always in stock
Daily 8–19
Rental of CCR, scooters, sidemount and double cylinders; CCR room for 14 units. ProTec Playa merged into Tulum in 2026. Keys for Xa'ay Ha (Chi Keen) and Doggi/Style (Muyil) are collected here.
Ko’ox Diving (Tulum)
Tulum
Air, nitrox, O₂ and helium mixes (He about US$2/cf)
Daily 7:30–21:00
Fills CCR, stage and double cylinders; cave gear for rent. Card payment accepted. The site also lists a Puerto Aventuras branch (Hwy 307 km 269.5, 7:30–21:00), but it is not on Google Maps — ask whether it exists and fills.
Third Dimension Diving
Calle Chemuyil Mz 14 Lt 01, Mayapax, Tulum
EAN32, HP O₂, deco gases and any trimix (booster); Sofnolime 797 and Intersorb; prefilled trimix bailout for rent
Unknown — call
Rental of backmount, sidemount, CCR cylinders, Suex scooters and stages. In Tulum (Mayapax neighbourhood, west of the 307).
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Other sites6 within 2 km
News
All (5)
Nearby
Articles about cave diving that name a place within 25 km of this site, but no cave by name. They're not necessarily about this site.
- A Diver Found a Skeleton at Least 8,000 Years Old Hidden 26 Feet Underwater in a Flooded Cave in Mexico ↗
- Cave-divers find trapped spearfisher alive after 15 days ↗
- Cave diving is fraught with danger, but the reward is sights like nothing else on Earth ↗
- INAH files legal complaint for diver damage to underwater archaeological site in Tulum cave ↗
- A Diver Found 8,000-Year-Old Human Remains Deep Inside an Underwater Cave ↗
Access and rules change: check what applies locally right before your trip. Source: GDELT Project and the news feeds of diving magazines. Search for more news ↗ Searched automatically, last on 11 Nov 2026.
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