I could go on and on and ON about things you MUST do while you are in Iceland but if you had limited time or funds and had to choose just ONE tour, I highly recommended the golden circle tour.
This tour gives you the opportunity to do a multitude of sightseeing all in one day. You visit Thingvellir National Park, Geyser & Gullfoss waterfall. If you use the same company I did, Iceland Horizon you also get TWO added bonuses at the end of the tour along the route returning to your hotels. I will not tell you what they are but I WILL tell you they are VERY worth it and without a local you will not get these added experiences!!! To find out what these two gems are, you have to book the tour. ;) +354 866 7237
Our tour guide, Gerda and bus driver were also WONDERFUL. They were a husband and wife team and their relationship dynamic was pleasant and adorable. They made the drive fun and super informative. Once in Thingvellir National Park you also have an opportunity to stop at a little snack and souvenir shop where you can buy postcards and postage and send your photographic souvenirs off to your family and friends before you even leave Iceland! This is one of my favorite things to do while traveling. :D
Be sure to mention that Hilda sent you if you decide to book this incredible tour! :D
For more photos of this tour visit www.worldworthwandering.com