Maybe dumb ? about visibility

[k ellis]

Well, there was that other option! :shocked2:

Wow never thought of it in that manner. Maybe I should have said 300 feet so I could be bragging but had to leave it with truth

 

[MauiScubaSteve]

Here are some visibility numbers for Molokini from web sites that are marketing. They are trying to sell you on Molokini. The truth is not hard to sell some times.

Along the slopes of this submerged volcanic cinder cone, divers can experience the best visibility in the entire state - frequently exceeding 100 feet or more

SCUBA Dive where the water is warm, the visibility is 100 ft.+ and the scenery and marine life are the best on Maui!

I have dived extensively in the South Pacific, and I can say unequivocally that this area (and Hawaii in general) has the clearest water I have seen, averaging 120-150'

Inside the crescent shape is a reef area with clear views to 150 feet.

 

[k ellis]

Here are some visibility numbers for Molokini from web sites that are marketing. They are trying to sell you on Molokini. The truth is not hard to sell some times.

I agree with the high publicity of Molokini Crater. It is literaly in every tourist book I picked up over there and they did give high numbers to promote the dives. And your right the truth isnt hard to sell. Thanks for the great post too.... :cool2:

 

[fisheater]

ReefCheck measures visibility in its surveys (at least in California) by having a diver move along a transect measuring tape holding out his/her fingers. When the dive buddy can no longer distinguish the fingers, that's the vis.

 

[Bob DBF]

If you can see your fins it's a good day, if you can see further it's better.
I might have to try the tape measure and check my accuracy.

Bob

 

[Thalassamania]

A real visibility measurement is done with a Succi Disk, a round white disk like a Frisbie on a measured line.

 

[fisheater]

A real visibility measurement is done with a Succi Disk, a round white disk like a Frisbie on a measured line.

Thal: The only time I've seen or used a Succi Disk is for vertical visibility. Is there a recognized relationship (or rule of thumb) between vertical and horizontal visibility?

 

[farsidefan1]

I'm pretty confident out to 10 feer. If I can't see further than that I PICKED THE WRONG PLACE TO DIVE! Ok, I confess to being a tropical Diver. Below 75 degrees and I PICKED THE WRONG PLACE TO DIVE! Yes, I know there are a multitude of great things to see in low vis and cold water. I started diving when I was 56 and I figure I've got about 15 yrs of good diving ahead of me. Possibly more but ... who knows. So I'm gong to hit all the great, warm sites and when I run out, well, I'll probably start over

 

[Thalassamania]

Thal: The only time I've seen or used a Succi Disk is for vertical visibility. Is there a recognized relationship (or rule of thumb) between vertical and horizontal visibility?

Horizontal vis is often quite different from vertical. In fact it is often quite variable from one depth to another. Standard is still a Succi Disk, just with two divers. There are electronic turbidity meters.

 

[Sas]

Me and my buddy have used a reel with each metre marked off and one of us holds it whilst the other swims out, when we lose site of each other, that's what we consider the viz.

It has always been better than our estimations, sometimes by a great deal.