I can't say it was the most enjoyable experience for me, but I can say it was the most memorable. Challenging system, to say the least. Located under the Dixon Hill Lighthouse. Don't go alone (of course, that's always good advice when spelunking is involved). This system is tidal fed, so you need to consult a tide chart and find out the average amount of time it takes to get through from locals. Go in at low tide, and don't dally. Involves swimming, pulling yourself up out of and through tight spots. This was a caving adventure I will never forget.