Traveling in Iceland during the midnight sun is spectacular. It is also the high season which means lots of tourists.
I recommend doing this one thing to help make your trip more enjoyable....
Switch your body clock and see the sights at night instead of during the day.
I know. It sounds crazy. But I did it on my June 2017 trip to Iceland and it was the perfect way to see the more popular sights. I didn't do this the entire 10 days, just when I reached the more touristy part of Iceland. North and East Iceland you can see easily on a regular schedule, even during high season. Once you reach Glacier Lagoon I suggest switching over. Definitely travel on a switched schedule for the golden circle and Vik Beach area.
Take a look at the pictures below. All of these were taken during 3 or 4 am - no one was around and I had tons of energy since I slept all day.
Here is the thing, the sun is almost always up during the summer months. They call it the midnight sun in Iceland. That means that the sun doesn't set until around 1 am and it rises again at 3 am. Even those two hours are more dusk like than truly night-like. This makes sleeping hard regardless so I suggest sleeping during the day.
For example...would you believe me if I told you the picture below was taken at 10:30 at night. It is so bright out! I know it is hard to believe.
But look around at the paths. This is one of the most popular waterfalls in Iceland and there are maybe 10 people total! If you sleep all day and stay up all night you can see so many of the best sights in Iceland with almost no one around.
By the way, if you are traveling the ring road in Iceland I highly recommend my FREE travel guide. Included are maps to find secret hot pots, my best instagram tips for certain sights and so much more.
I watched the sunrise at Glacier Lagoon and at Vik Beach. I will never forget those moments. Being completely alone and taking in all the beauty of Iceland.
So, I know I have a lot of Iceland advice. But, if you take one piece of advice from me let it be this.