During three rekonesans dives I checked botom of Sabak Ha cave and didn't find deep pasage to the abyss. Every four walls (North, East, South and West) are conected with the falling down slopes of center debries cone.
max depth was 165m on South part of this Cave.
In my opinion this cave hasn't deep passages on the bottom Main tunnels are on 60m
so, we decided finish our trip to this cave an go back to Playa Del Carmen