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Small cascade on old sea cliff at Highcastle feeds equally small surface flows on Highcastle lava delta. In background is large tumulus on defunct West Highcastle delta.
Starting point for new cascade slightly nearer camera than cascade shown above. This cascade started 5 minutes or less before image was taken. Lava gushes from crusted hot flow at very brink of old sea cliff. Width of gush is about 1 meter.
Continuation of cascade in left image, only 2-3 meters farther downstreameters. On left, lava is starting to plummet to base of cliff. Width of view, about 2.5 meters.
Looking across top of cascade shown above, with laze from ocean entries in background. Image taken at approximate peak of activity. Compare with left image below, taken as lava flux is waning.
Start of same cascade as shown to left but 3 minutes later. Crust is growing from right to left from point of lava emergence (right side of image) as flux declines, and sluggish lava develops ropes where gradient slackens. Three minutes later, all lava was hidden by crust, and cascade was a mere dribble.
Looking across top of cascade shown above, with laze from ocean entries in background. Image taken as lava flux is waning. Compare with left image above, taken as lava flux was at its peak.
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