To echo the comments of Stu and Pit, its a very fine and worthy trip!!
Quite a mixed bag of caving; walking, crawling, climbing, wet, dry, only 4 pitches and they aren't too big.. From what I recall it was reasonable going to Elbow Bend and just to that makes a good (slightly shorter/easier) trip, past that it became wetter and a bit more awkward in nature?
I'm keeping my fingers crossed for good weather in May as I'll be making another return visit.