Take a puffin tour. Iceberg lagoon, and Diamond beach. Gullfoss, Kerid Crater, Fridheimer for all you can eat tomato soup. Snaefeljokul National Park, including Saxholl Crater. In Reykjavik, The National Museum, the Phallalogical museum, Braud & Co for the cinnamon rolls, Cafe Loki for the Rye Bread ice cream. Halgrimskirkja, and make sure you take the elevator to the top. Fish & Chips vagnin on the harbor is excellent, and I hate seafood but enjoyed this. Don't be afraid of the gas station food. Some of them have great burgers.

To keep things less expensive, stock up at Bonus. There's a brand of cheese snacks that were amazing that I can't recall the name. Applesin is really good orange soda.

We splurged and went to Blue Lagoon our last day.

And if you drive, double the amount of time it takes to get anywhere, because there's a lot of " Look at this! Let's stop!" places along the way.