I have never dived in fresh water, but have discovered a reservoir near me that I might (I have to ask permission) be able to dive in.
At this time I'm not sure of the depths and what might be down there - I presume at least the old river beds, and maybe some buildings and sunken forest stuff. The dam has been there for about 30 years I believe.
My question concerns visibility at such a sight. Looking at the surface it seems quite murky - presumably due to the sunlight and algae growth etc. Is it reasonable to expect in such water that with some depth the algae growth drops off and the vis improves a bit? Or is it just going to be like that all the way down until the silt at the bottom?
I'm going to the office today to ask about it and see if there are old maps of the area before it was flooded. It appears that at least three river beds converged at this point where they built the dam. If I'm allowed to dive the site my plan would be to start at where one of the rivers enters the lake and follow the old river bed down mapping as we go. I'm assuming a max depth of 30 to 40 meters - the dam must be about 40 meters high, I'll check that today.
Any ideas/advice from people who dive these type of sites would be more than welcome. If I can make this work it would be fantastic. It would give me a dive site within 15 minutes of my house!
Of course....this is Japan....they might just say NO!
At this time I'm not sure of the depths and what might be down there - I presume at least the old river beds, and maybe some buildings and sunken forest stuff. The dam has been there for about 30 years I believe.
My question concerns visibility at such a sight. Looking at the surface it seems quite murky - presumably due to the sunlight and algae growth etc. Is it reasonable to expect in such water that with some depth the algae growth drops off and the vis improves a bit? Or is it just going to be like that all the way down until the silt at the bottom?
I'm going to the office today to ask about it and see if there are old maps of the area before it was flooded. It appears that at least three river beds converged at this point where they built the dam. If I'm allowed to dive the site my plan would be to start at where one of the rivers enters the lake and follow the old river bed down mapping as we go. I'm assuming a max depth of 30 to 40 meters - the dam must be about 40 meters high, I'll check that today.
Any ideas/advice from people who dive these type of sites would be more than welcome. If I can make this work it would be fantastic. It would give me a dive site within 15 minutes of my house!
Of course....this is Japan....they might just say NO!