A sporting trip with an excellent streamway. Dave could not fit through the original squeeze but the rest of us had a wonderful trip down the main streamway, including a climb down over a very deep pool and some impressive slanting cascades. All too quickly we reached sump 3 which had no bypass so started looking at side passages. Not far back from the sump I pushed a well trodden flat out passage uphill that must had gone for 50m into large stomping South wales like passages, when the others eventually joined me. We then headed out and down Rana hole and the black rift which put us on the other-side of sump 3, we then went down stream for some distance to arrive and the Great northern time machine, the largest chamber in Scotland, it really felt like we were abroad or somewhere, so much so I started driving on the right the next day!