Hundreds of cavers every year pass very close to Upper Piccadilly as they make their way through the Piccadilly area of Ogof Ffynnon Ddu en route to the main streamway.
Although it is a very large passage it rarely gets a glance as it is 18 metres above the heads of the cavers passing by.
Very few cavers have visited this area of the cave, but for those who do venture off the beaten track it is well worth the effort as it is well decorated and contains a fantastic rock bridge.