The upstream entrance to Cow Springs has a major restriction requiring moderate body and equipment manipulation to pass through a roughly vertical to horizontal transition at about 40 ft of depth.
The current flow is typically quite high, requiring a pull rope to be permanently installed in the front section of the cave. Visibility is typically very good, with depths in the 90-110 ft range. The upstream section is quite delicate and is considered an advanced cave dive. Divers MUST ensure
their buoyancy control is excellent before entering this system. It contains spectacular clay banks and delicate goethite formations throughout that are easily damaged and challenging high flow and additional restrictions beyond the entrance.
The following rules apply to the upstream section of Cow Springs:
1. Divers shall be a member of the NSS-CDS or CDS.
2. Divers shall be trained and certified as Cave Divers or equivalent certification.
3. Divers shall possess DAN diving accident insurance or equivalent.
4. Divers shall sign an NSS-CDS liability waiver on the day of diving.
5. DPV use is prohibited.
6. Only advanced sidemount training may be conducted by NSS-CDS Instructors for students meeting all other requirements. All other training is prohibited in the upstream section.
The Downstream section of Cow Springs is shallow, in the 30 ft range, and fairly wide open with
roughly 450 ft of penetration possible with no significant difficult areas.
The following rules apply to the downstream section of Cow Springs:
1. Divers shall be a member of the NSS-CDS or CDS.
2. Divers shall be trained and certified at Cavern Diver or equivalent certification.
3. Divers shall possess DAN diving accident insurance or equivalent.
4. Divers shall sign an NSS-CDS liability waiver on the day of diving.
5. DPV use is prohibited.
6. All levels of Cavern and Cave Diver training may be conducted by NSS-CDS Instructors for
students meeting all other requirements.
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