Tuesday, October 30, 2007

New PADI Specialty

PADI introduced a new Specialty for divers that are interested in testing the water in tec. Details are below, I'll publish a schedule of my first class soon.

PADI Tec Basics

(New this August 2007)

Course Overview: The course is designed to be a bridge from PADI courses to DSAT courses providing recreational divers an opportunity to gain exposure to tec diving and learn and practice entry level tec diving skills. It introduces recreational divers to tec diving without them having to make the larger commitment (in terms of equipment, time and cost) of the DSAT Tec Deep course. PADI Tec Basics dive scope is within recreational limits, using segments from DSAT Tec Deep 1. Likewise, this specialty course may be credited toward DSAT Tec Level 1. In addition, the course provides DSAT Instructors a recognition level for students who choose not to continue on to full technical training.

Diver Prerequisites

1. PADI Advanced Open Water Diver or qualifying prerequisite certification.

2. PADI Enriched Air Diver or qualifying prerequisite certification.

PADI Rescue Diver is recommended.

Student Equipment Requirements

1. High capacity single cylinder with Y or H valve. Twins with dual manifold and isolator valve are recommended.

2. Primary and secondary regulators – primary regulator must have seven foot / two meter hose for air sharing.

3. SPG

4. Harness with shoulder and rigid hip D-rings.

5. BCD – wings (redundant buoyancy is not required for this course; however, students should be aware that redundant buoyancy device is required for Tec Diver 1)

6. Dive Computer

7. Appropriate Exposure Suit

8. Weight System

9. Dive Reel

10. Knife / cutting device

11. Slate

12. Compass

13. Lift Bag

Required Student Materials

DSAT Tec Deep Diver Manual

Minimum Age:

18 years of age

Maximum depth:

80 feet.

Dives (Confined Water)

2 dives

Dives (Open Water)

2 dives

Academic Content:

Students must read chapters one and two in the Tec Deep Diver manual and complete the Knowledge Reviews for each. This must be done as pre-study. There will be one classroom session to review missed questions on Knowledge Reviews and any other questions students have.

Practical Applications:

Divers learn how to calculate turn pressures based on rule of 3rds, SAC rates, standard gear configuration and additional tec diving basics

Confined Water:

Conduct Training Dives One and Two as outlined in the Tec Deep Dive manual where divers practice shut-off drills, S-drills, deco bottle staging and deployment of lift bags.

Open Water:

Repeat Training Dives One and Two in open water applying the skills to the open water environment. Students calculate a turn pressure based on thirds and write it on their slate. Students also list the skills for each dive on their slate.

Course Credit:

Since the PADI Distinctive Specialty Tec Basics is actually a portion of the DSAT Tec Diver 1 course, Tec Basics may credit toward Tec Diver 1. Tec Basics divers should know that if they choose to move up to Tec Diver 1, their instructor may request a repeat of some confined water sessions and practical application sessions, depending on the interim between Tec Basics certification and the start of Tec Deep 1. Divers who do not complete Tec Basics in doubles and / or have not been diving in a technical rig should have sufficient time for practice in doubles prior to doing any dives in open water. Training Dives One and Two, Practical Applications One and Two and Knowledge Reviews One and Two may be credited toward Tec Diver 1.

Tuesday, October 23, 2007

Diving Hawaiian Style

We just got back from a wonderful trip to Maui and Oahu. If you’ve never dove in the Hawaiian Islands it well worth the trip. One of the advantages of Hawaii is that it’s quick 5 hour flight from Seattle and there are no customs hassles once you get there.
The diving in Maui is some of the best on the islands. I chose to dive with the crew from Lahaina Divers out of Ka’anapali. The guys were knowledgeable and competent; plus they gave me as much latitude with my dive profiles as possible. We made several dives out off the island of La’nai to the Cathedrals I and II. The Cathedrals are left-over mega lava bubbles that filled with water and make spectacular cavern dives. Wildlife included shark, dolphin, and bunches of cool little critters. The visibility was a good 100’ and toasty warm; but you probably already guessed that. We also trekked out to the Island of Molokini. The island is a sunken crater which makes for fabulous dive and snorkel site. Dives inside the crater are ok; you see bunches of butterfly and trigger fish. However my wife Windy saw as much snorkeling as we did on our dives; octopus, moray and other neat fish. We ventured to the back wall the following day and were pleased to find white-tip reef shark, Galapagos shark and even a frog fish in over 200’ of underwater cliffs.
Often overlooked is the diving within Oahu. The island usually makes people think of Wakiki and surfing; but he diving on Oahu is good as well. It’s one of the few islands with diveable wrecks. With Ocean Concepts we dove the Mahi wreck; one of the best wreck dives on the island. The wreck sits in about 95 feet of water with much of the superstructure intact. It’s a former 176’ minesweeper/cable layer that was sunk in 1986 to become as an artificial reef. It has become one of the most popular wrecks in Hawaii but because the tower collapsed in one of the hurricanes divers are advised to remain on the outside of the wreck.
The second wreck I visited I chose to dive with Island Divers on what they call the LCU; an upside-down landing craft (as in beach landings) lies in 95'/29m of water on a sandy bottom with spotty reefs surrounding it. Not the most exciting wreck since it lies keel up; but it offers a nice swim-through underneath the wreck and is often home to shark. There is also a tighter swim-through through the pilot house, but no penetrations without being hazardous. One final wreck we visited on the trip was the Sea Tiger, definitely one of my favorite wrecks on Oahu. It’s large for the island; there are several swim-throughs and penetration possibilities. We spotted eagle rays circling the wreck, and several leaf scorpion fish. Sunk in 1996 by a submarine company the Sea Tiger doesn't have a whole lot of coral growth but even so schooling fish, moray eels, and nudibranch are very common. I went with Aaron’s dive shop for this dive, and we chartered the “Moe Mac” for the trip. The Sea Tiger rests upright on a sandy bottom at 130'/40m, but dive depth is generally between 80-100'. Apart from missing wood planks and some decay inside the wreck the Sea Tiger is very much intact and impressive site. All three shops did a good job. Ocean Concepts had the best dive boat, but were fairly restrictive in their dive policies. Island Divers had the best attitude with experienced divers, and Aaron’s had the best atmosphere of a dive shop community if you get to the North Shore. I would recommend any of the three; but a lot depends on the DM and captain.

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