I guess now I know why the visibility in downstream was so bad today! After taking a peak into it last week, I thought it was finally time to get over on that side. I just did a quick 300' scooter downstream after my upstream dive last week and saw about 20' of visibility. Today, I scootered back to the 2000' marker and saw 5-20' of visibility, mostly 5'. I finally gave up on it clearing up and turned the dive. Fortunately, off the main passage it was clear so I was able to salvage the dive with a nice little swim several hundred feet back into a sidemount passage.