Exploring, Surveying and Documenting the underwater caves in the Ejido Jacinto Pat, in Akumal Mexico
1995 Team members have been familiarizating with the systems since 1995, however it was not
until 1999 that exploration began.
1999 The team muscle gear 3 miles thru thick jungle in horses, due to harsh condition, the
expedition was limited to just one dive for 4 divers, two deep support and video and two gas
divers who confirmed deep drainage lead a survey data to create a better dive plan in a future
expedition, a mixed gas dive to max depth 270 ft and 500+ ft penetration was done, thru main
tunnel ending at sight of the by pass. ( A restriction 5ft in diameter at 290 ft and a bigger pass
at 310 ft, both are aprox 100 ft long joining a big chamber) Excellent footage was obtain.
2000 Expedition got a hold of thirteen horses and manage to haul enough gear for 4 dives
support team set up safeties on the bypass at P650', deep deco bottles and habitat Oxygen, lead
divers manage two full penetrations P1000+ and confirm on going cave at the end of line of B.M.B.
tunnel and explore right side of the break down checking new leads, the main one narrow but did
2001 Was dedicated to a major familiarization with both cave systems. New diving procedures
and equipment were employed. This years efforts were put into finding the route from main
entrance "Dos Ojos" to the Pit, to allow non expedition assaults to the Pit deep cave. Available
maps proof obsolete. Also Nohoch dowstream section was inspect. This years efforts round up
with about 100+ cave dives in EJP and 5000+ ft of explored and "re-explored" passages, which
turn to be a bit harder than just following virgin cave, penetrations build up to the 10 000+ ft
range from main entrances, route to the Pit still not found. Further exploration will require rb
and long range scooters.
2002 This year the team has created a dedicated project with two main seasons, and several
shorter assaults, expeditions to the Pit and all around resurvey. Also new rb80 and long range
gavins been employed. Goals are inspection of lines in both systems and actualization of both
maps, re- survey new lines, conection upstream from main dos ojos to the pit, conection between
both cave systems, exploration uptream and search for more deep drainage entrances.
Results by progress 2002
February, Dos Ojos, Survey of Main lines Dos Ojos
April, Nohoch, Assaults inspecting Main line, Diaz line and X line, Pet cementery area, king pong/
tank off restriction and search leads from "Blue abyss" to the deep drainage. Also a ultralight
flight allow gps readings of potential new cenote conections upstream and verify close vicinity
between both systems, aerial footage permit study of the area coordinating gps reading with
timed plotted flight.
May, Pit Expedition Expedition. Report 1
July, Dos Ojos, RbTeam conduct several assaults searching for Pit expedition line conections ,
10000 ft line were ad to upstream passages, inspection of all lines in the "Inch away zone"
section and most lines of "LSD zone" were acomplish. Long bodys and short tow behind gavin
scooters allow for Penetrations in the 12,000ft range in less than 5 hr dives.
August, Dos Ojos, O/C assaults searching for upstream leads on the Gavin- Irvine line, locating
new promising lead at 8250 ft, surveys and inspection of all lines in a 3000 ft radius around
Tikimich area (5000ft), secure data to proof double level cave and solve misteries on the
Tikimich area maze.
September, Linking Main to the Pit. Conection made.
December, rb80 test dive from main to the PIT, P16000ft Max depth 300
May Upstream Dos Ojos Exploration dive from main to M1, M2, P15500ft
August Pit exploration from Main entrance , P13500ft max depth370ft,11.5hr dive on rb80's
report on DIRQUEST magazine by Shane Jeckel
September Exploration Upstream beyond Princesa at 15000ft and Blue Abyss exploration on
mixed gas, 240ft-80 at 10000ft-3km. Report
December Pit Lines resurvey, P1500ft max depth 290ft. Camp Report
January Nohoch Upstream end of the line exploration, P15000ft Max depth 240ft. Report
November Dos Ojos Upstream Exploration, P16500ft. Report
May Nohoch Na Chich Upstream exploration. Nohoch Na Chich Main entrance to Blue Abyss DVD
creation, P16500ft Max depth 100ft. Report
November Pit water & sediment sampling, Dos Ojos and PIT DVD creation, P10000ft Max
December Far West cenotes look out dive, P1000ft of new line in new cave entrance. Report
January Aktun Hu system and other far west cenotes explored. Report
FebruaryThe Pit survey and DPV test.
DecemberThe Pit map part 1 and Part 1A uploaded. Pit cave MAP , Dos Ojos cave system
November first full CCR project Megalodon rebreathers were dove for max deco dives with over 150min below 250ft max depth of 350ft and duration of 8.5hrs.
November Scientific research project and Equipment development
November New technology ApSCR + Deco rebreathers Testing. New Access tables and descent stairs.
2013 Line conditions check and Replacement
*Since the late 90's TDI, NACD, GUE, IANTD, UTD and IDREO divers have participate and gotten Experience & Explorer knowledge thru the EJPP.
-Documentation of the EJPP Cave Systems
-Exploration and mapping of cave passages
-Exploration and mapping of Pit Cave
-Connection of EJPP Cave Systems
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