1) The Bora Bora island, located in French Polynesia in the Pacific Ocean, is renowned for its stunning turquoise lagoons, white sandy beaches, and luxury resorts. It is a popular destination for honeymooners and those seeking a tropical paradise getaway.

2) The word "umbrella" contains three vowels: U, E, and A.

3) The Appalachian Mountains, running along the eastern coast of the United States, are one of the oldest mountain ranges in the world.

4) The Northern Lights, also known as the Aurora Borealis, are natural light displays that occur in the polar regions due to interactions between the Earth's magnetic field and solar particles.