Two potholes join through some tight passages. Meregill contains some beautifully fluted shafts and is worth the soaking that you get when you use the Mere entrance. The Mere is a long split in the ground with a deep pool in it. The height of the pool changes according to rainfall but the water never enters the known cave. A detailed trip description of the Meregill section was available online, but seems to have disappeared. It is still available via archive.org.