Hawaii's Big Island supplies travelers with a number of perfect romantic getaways. Visit the city of Hilo, where you can see Kilauea, the largest active volcano in the world, or the breathtaking Akaka Falls, where the water falls more than 400 feet into a pool below. The Hawaii Tropical Botanical Gardens are also popular among visitors to this island. Activities on the Big Island include snorkeling, golf, deep-sea fishing, horse-back riding and more.