For lunch we found a charming cafe (meaning overpriced mediocore food) and then headed over to the Kristall Galerie. This is a pretty small museum that could be seen in about 10 minutes. It has a cave replica which frightened the boys the first time through. Ryan was wrapping his legs around mine, afraid to move. After the first time through, we couldn't keep up with the boys. They thought it was great. They also have an area where you can "find" polished rocks. Ryan mostly wanted to throw them in the water.
Back to the bouncy castle area for a couple more hours. Justin kept gong back to the water slide over and over, while Ryan and I wandered over to the ocean. Justin and Rob eventually joined us, and we enjoyed having the waves get our feet and legs wet. When the boys started to shiver, it was time to head home.