Sent you a DM.
(There IS permanent line, as folks have noted, starting at about 120’; it forms a loose circuit from the left to right side of the cavern, dropping down to about 145’ at the hawk with a further dip down to around 165’ at the deepest if you keep following it back; there’s some fluctuation depending on water levels. There is not a posted cave sign but probably should be…max depth without entering serious overhead is closer to 100-120’; the freedivers will drop down to 80’ or so, which is pretty incredible to watch)
(There IS permanent line, as folks have noted, starting at about 120’; it forms a loose circuit from the left to right side of the cavern, dropping down to about 145’ at the hawk with a further dip down to around 165’ at the deepest if you keep following it back; there’s some fluctuation depending on water levels. There is not a posted cave sign but probably should be…max depth without entering serious overhead is closer to 100-120’; the freedivers will drop down to 80’ or so, which is pretty incredible to watch)