Iceland 2.0 BOOKED!

We did it! We rebooked our trip to Iceland at the end of March. Our first go around was canceled due to Hurricane Irma. It was also meant to be our 5th anniversary trip.  This time, the itinerary will be a little different and more efficient, and we are bringing the 14 year old! It should be quite an experience for her and hopefully an amazing spring break for her.  The plan is to pick up the rental once landed and head straight to Jokulsarlon glacier lagoon, get a cabin nearby, and then next day head back to Reykjavik for the rest of our days.  If you have any suggestions on do's and don't dont hesitate to post.  Thank you!