It was later explored by Martyn Farr among others to a depth of 9.5 m from where the water emerges from a 2 m wide fissure.
River Shannon | Shannon | Molly Shannon | Claude Shannon | Sharon Shannon | Shannon Tweed | Shannon Noll | Del Shannon | Shannon River | Shannon McNally | Shannon Elizabeth | Shannon Briggs | Shannon Airport | Pol Pot | Shannon Ryan | Shannon Moore | Scott Shannon | Elizabeth Killigrew, Viscountess Shannon | Tommy Shannon | Thomas Robert Shannon Broughton | Shannon Sharpe | Shannon McFerran | Shannon Kleibrink | Shannon Hoon | Shannon–Hartley theorem | Shannon Esra | Shannon Bennett | Shannon Bahrke | Pot Black | Nyquist–Shannon sampling theorem |