The second week of our trip to Iceland included a Refresher Workshop for previous RfR Fundamentals attendees. The weather continued to be dry and cold, and we had some excellent training sites for pickoffs, litter work, and volcanic crevasse rescue. The old lava flows have numerous cracks in the surface that form rock crevasses. Some of these are hidden with a blanket of thick moss that acts like a carpet. Cracks like these create a hazardous trap door quality for the unaware hiker out for a stroll. It was a different experience to cover crevasse rescue in a volcanic lava flow.