We decided to add a bit of exploration to the derigging trip by looking at a lead in Oompah. A 16m pitch was descended at the limit of previous exploration. The pitch was pretty, landing in a rift but neither way at the bottom went. Upstream ending in a nice clean washed aven and downstream a series of boulder climbs. A possible lead was noticed halfway up the wall in the chamber above the pitch. This would require a traverse or a climb or possibly a tube on the left of the passage above this chamber might give slightly easier access. Then derigged Tunnocks entrance and caramel Catharsis.