Saturday (the 28th), I took Marius for a day trip for an early birthday present. It was an 11 hour excursion which included a soak in a hot spring, some waterfalls, and a hike on a glacier. The guide had some intersting stories and we even saw the infamous volcano that erupted in 2010 (and nearly ruined our Thailand trip).
It was a pricey trip, but for me it was worth it since our guide could tell us more about the eruption and the glacier, as well as some Icelandic history.
Oh and a big thing to mention - the weather was FANTASTIC!
--> a geyser on the way to the hot spring
--> he was excited to warm up in the river
--> the glacier we walked on; looked dirty due to all of the ash