Sian Ka'an - Feb 7, 2007 update
Dive Team: Danny & Chris
Surface support: Alex Alvarez
Dive site
Name: Yax Chen
Coordinate: WGS84 UTM 451245 2226084
Conditions: The water clarity in the Yax Chen basin was exceptionally clear. The water condition in the downstream part of the cave was fair. Flow was noticeable. The downstream is heading NE/E in parallel with the coast line. There’s a fair amount of organic particles in suspension throughout the water column.
Dive Objectives:
- The team wants to continue the previous day’s exploration. The cave is running NW in a small area.
- First line laid at the end of previous line became v tight after only 250ft. Danny followed an organic slope down to 45 ft with no success. Line name : Organic
- Off the Organic Line another small conduit was explored running NW. The end is still open with little flow.
- Another section of cave was explored off Gary Walten’s original line. This is a shallow section of cave ending in a breakdown area. The cave was heading SE to start with but turned to the NE at the end.
- The small area with flow needs to be checked again. The cave is heading from that point in an interesting area.
| Line name: | Freak, Organic & Boredom |
| Passage width (meters): | 1 |
| Passage Height (meters): | 1 |
| Passage Shape: | Bedding plane– Fractures |
| Fauna: | Shrimp |
| Speleothems: | Yes |
| Sediment: | Red & White & Black – Organic & Clay |
| Infill: | Breakdown |
| Water: | Slightly tannic – Halocline mid passage at 42 ft - |
| Additional Comments: | 2. Fossiles in abundance |
Equipment and Survey: 3 x EAN 32 stages and 1 x 33amp scooter per diver
| Dive log: | |
| Dive # 1 | |
| Time in: | 12h10 |
| Time out: | 16h30 |
| Total run time: | 260 minutes |
| Max Depth: | 49 ft |
| Av Depth: | 40 ft |
| Divers: | Danny & Chris |
Dive Team: Sigurd & Tom
Surface support: Alex Alvarez
Dive site
Name: Yax Chen
Coordinate: WGS84 UTM 451245 2226084
Conditions: The water clarity in the Yax Chen basin was exceptionally clear. The water condition in the downstream part of the cave was fair. Flow was noticeable. The downstream is heading NE/E in parallel with the coast line. There’s a fair amount of organic particles in suspension throughout the water column.
Dive Objectives:
- Set-up dive. Drop 4 stage bottles on “Chupa” 3 line for exploration team.
- Set-up dive completed fine.
Equipment and Survey: 3 x EAN 32 stages and 1 x 33amp scooter per diver.
| Dive log: | |
| Dive # 2 | |
| Time in: | 09h45 |
| Time out: | 11h55 |
| Total run time: | 130 minutes |
| Max Depth: | 45 ft |
| Av Depth: | 40 ft |
| Divers: | Sigurd & Tom |
Dive Team: Franco & Fred
Surface support: Alex Alvarez
Dive site
Name: Yax Chen
Coordinate: WGS84 UTM 451245 2226084
Conditions: The water clarity in the Yax Chen basin was exceptionally clear. The water condition in the downstream part of the cave was fair. Flow was noticeable. The downstream is heading NE/E in parallel with the coast line. There’s a fair amount of organic particles in suspension throughout the water column.
Dive Objectives:
- Recon of lines starting right at Chupa 3
- Checked out all NW leads off SM # Salty dog
- This is a complex area of caves that needs to be re-checked for possible leads going back N/NE towards OBH.
- Entering Cenote Perla on the OBH side may be more appropriate to further the exploration on this side of the cave.
Comments/observation: There are large under-cuts in the bottom floor in an otherwise wide passage. This is likely to be the area of cave connecting OBH to Yax Chen East.
Equipment and Survey: 2 x EAN 32 stages and 1 x 33amp scooter per diver
| Dive log: | |
| Dive # 3 | |
| Time in: | 11:25 |
| Time out: | 14:45 |
| Total run time: | 205 minutes |
| Max Depth: | 59 ft |
| Av Depth: | 42 ft |
| Divers: | Franco & Fred |
Dive Team: Mike & Per
Surface support: Alex Alvarez
Dive site
Name: Yax Chen
Coordinate: WGS84 UTM 451245 2226084
Conditions: The water clarity in the Yax Chen basin was exceptionally clear. The water condition in the downstream part of the cave was fair. Flow was noticeable. The downstream is heading NE/E in parallel with the coast line. There’s a fair amount of organic particles in suspension throughout the water column.
Dive Objectives:
- Take GPS coordinate for Cenote Gemini 1, Push & Tannic
- Add line to OW at Cenote Gemini
- GPS coordinate for: Gemini 1 #448859/2226954 Push #448859/2227411 Tannic # 449629/222657
- Add line to OW at Gemini OK. This is in preparation for next project at base camp Gemini.
Equipment and Survey: 3 x EAN 32 stages and 2 x 33amp scooter per diver
| Dive log: | |
| Dive # 4 | |
| Time in: | 11h50 |
| Time out: | 16h00 |
| Total run time: | 250 minutes |
| Max Depth: | 50 ft |
| Av Depth: | 38 ft |
| Divers: | Mike & Per |