Seljalandsfoss is a popular waterfall in Iceland that you can walk behind. You can see several people behind the falls to the left of the picture - small green and red dots. It faces westerly and so the setting sun can produce rainbows as it does here (to the left of the primary falls). Off to Jökulsárlón Glacier Beach tomorrow.
This is Loftsalahellir Cave, a small hole in the side of a large rock formation in southern Iceland. We had fun posing at the entrance. Seagulls inhabited the place. The tiny fern like plants on the ceiling were quite interesting.