The latter metaphor comes alive for us when we recognize that the Palestinian sycamine tree was notably
deep rooted; the Mishnah says: «A tree may not be grown within twenty - five cubits of a
cistern, or within fifty cubits if it is... a sycamore (shikmah) tree» (B. B. 2.11).
The Blue Hole, a 400 - foot
deep limestone
cistern, provides a habitat for a variety of marine species and is among the most popular destinations for
deep - water divers.