I only started diving there in 07, so my experiences are relatively recent. I've spent a lot of time upstream and usually it gets clearer as we go and is generally 100 or so at about 1200'. However, that has been degrading lately to 40-50 being the norm. But the Lockwood tunnel has always (for me) been a fall back plan because it seems I could always count on great viz there. I hope the dismal viz at the end the other day is the exception, but I fear that isn't the case.
Sent from behind a pint of Guinness.


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