Hawaii's Big Island
When you spend time on Hawaii's big island, the knowledge that this land was forged by volcanoes is omnipresent. You cannot go anywhere without seeing jagged lava rock and large swatches of scorched earth. It is truly one of the most alien places on this planet, in the best way possible.
While in Hawai'i with my father, I got the opportunity to see volcanoes national park, which was very interesting. Although it was far away, it was my first opportunity to see lava in real life. There are also beautiful nature trails in the national park as well. One thing that really struck me was the legends that it is extremely bad luck to bring anything natural home from the island, leading people to mail back rocks, sand, shells, and many other natural souvenirs they had taken from their visit.
The scuba diving in Hawai'i is also excellent. You are not supposed to touch the sea turtles, which was very difficult, as they swim right by you! I had a large sea turtle swim a mere inch from my chest as I did acrobatics attempting not to touch it. Very cool experience. We didn't spend much time in populated areas, but you don't really need to. The big island's natural features are a large part of what makes it impressive. It is definitely a once-in-a-lifetime place that should be on everyone's bucket list.