Tag Archives: Caves

Dive 72

Date: May 7, 2013         Repetitive Dive: 2 of 2

Time In:  11:26  Time Out:  12:22    Time:   :56

Dive Location: Sharks Cove,  Oahu, HI.

Dive Shop:  N/A

Purpose: Fun Dive

Dive Type:  Shore       Environ: Ocean / Salt

Conditions:  0-2′ Surf    Wt:  16lbs

Visibility: 40-50′

Air Temp:  81° F  Btm. Temp:  79° F

Max Depth:  35.2′    Average Depth: 21′

Safety / Decompression Stops: None

Start PSI: 2,779    End PSI: 502      Air/EANx:  21%

Exposure Protection: 5-Mil Full Wetsuit, Hood, Boots, Gloves

Equipment: 3cf Spare Air, Dive Light, Scuba Pro Jet Fins

Notes:

For our second dive of the day we decided to do a different area of Sharks Cove which offered more caves and swim throughs and would be a longer distance. As we climbed back down the hill and reached the water another dive buddy of hers showed up with another diver and we decided to wait for them before we headed out. 

Once they had made their way down to the water we headed out on the surface just as I noticed an air leak in one of the dump valves of my BCD which took me a few minutes to fix. Apparently I must have gotten some sand in the valve on the first dive causing it not to seal and free flow. Unfortunately this means that I no longer have a full air tank and was already down to 2400 psi, but at least I was able to get it resolved instead of having to abort the dive. The waves have gone down a little but the tide had come up since our last dive so it was a little easier navigating through the rocks at the shore. 

As we toured the Eastern side of Sharks Cove we found numerous caves to explore some of which were 40 or 50′ long and just wide enough for two people to swim through side by side which we swam through. Because I am still claustrophobic this was a challenge, but with Michelle as my dive buddy I decided to use them to help overcome my fears. I easily swam through each of the caves except for the last one that we found which was just wide enough for one person at a time and made a turn inside so that you could not see the exit. I decided to swim around that one and meet the group on the other side. I will save this one for next time when I have more air.

Unfortunately it was time to end the dive and get ready for the Open Water certification class tonight.

Dive 71

Date: May 7, 2013         Repetitive Dive: 1 of 2

Time In:  09:31  Time Out:  10:21    Time:   :50

Dive Location: Sharks Cove,  Oahu, HI.

Dive Shop:  N/A

Purpose: Fun Dive

Dive Type:  Shore       Environ: Ocean / Salt

Conditions:  1-2′ Surf    Wt:  16lbs

Visibility: 30-40′

Air Temp:  81° F  Btm. Temp:  79° F

Max Depth:  41.1′    Average Depth: 23′

Safety / Decompression Stops: None

Start PSI: 2,940    End PSI: 983      Air/EANx:  21%

Exposure Protection: 5-Mil Full Wetsuit, Hood, Boots, Gloves

Equipment: 3cf Spare Air, Dive Light, Scuba Pro Jet Fins

Notes:

Since I am working with Michelle this week assisting her with an Open Water certification class at the new Island Divers Hawaii dive shop at the Outdoor Recreation Center up on Scofield Barracks as part of my DMC course training we decided to do a fun dive together before class tonight. She is really into shore diving which I am not a fan of and she is trying to convert me, so we decided to do Sharks Cove on Oahu’s North Shore.

The weather worked out for us causing the waves to be really small today only reaching 1-2 foot high which made entry over the slippery rocks easier. Once we were in she lead me on a tour of the area showing me several caves, overhangs and swim throughs that I did not know were in the area.

She also worked with me on a breathing control technique to help me make my air last longer while diving. Normally about 30-40 minutes is all I can get from an 80 cubic foot cylinder unless I am using my DPV, then I can get over an hour. On the first dive I was able to get 50 minutes out of the cylinder, and still had almost a thousand pounds of air left. I could have easily done a full hour on this one thanks to her but we came to the end of our dive and time for a surface interval before the next dive.

One of the things I hate about shore diving is the long walks carrying all your gear over usually sand or rocks and normally up and down hills to get to the water. Then normally a long surface swim before you get to the dive spot. Sharks Cove eliminates the long surface swim, but not the long walk down hill over rocks and sand, then climbing back up to the parking lot afterwards. This is too much like work.

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