Lava boulders polished by wave action south of Scari: Boulders which have tumbled too near to the water experience considerable abrasion by pebbles thrown around by surf, in particular during winter storms. |
Lava boulders polished by wave action south of Scari: Boulders which have tumbled too near to the water experience considerable abrasion by pebbles thrown around by surf, in particular during winter storms. |