There are numerous golf courses around the world that are known for their unique and unusual features. These courses offer golfers a one-of-a-kind experience, whether it's playing in extreme environments or on unconventional terrains. Here are some examples of the world's most unusual golf courses:

1. Nullarbor Links, Australia: Located in the vast Australian outback, Nullarbor Links is the world's longest golf course, spanning 848 miles (1,365 kilometers). It stretches across the Nullarbor Plain, a remote and arid region. The course consists of 18 holes, each located in a different town or roadhouse along the Eyre Highway. Golfers can enjoy the stunning desert landscape while playing this unique course.

2. Merapi Golf Course, Indonesia: Nestled at the foot of Mount Merapi, an active volcano in Indonesia, this golf course offers a thrilling and adventurous experience. Golfers can tee off with the volcano as a backdrop, and the course features volcanic ash bunkers. Although the course had to be temporarily closed during volcanic eruptions, it has since reopened and continues to attract golf enthusiasts seeking an extraordinary golfing experience.

3. Legends Golf and Safari Resort, South Africa: This golf course is known for its extreme 19th hole, named the "Extreme 19th." It is located on Hanglip Mountain and is accessible only by helicopter. Golfers tee off from a height of 1,400 feet (430 meters) and have to hit their ball onto a green in the shape of Africa, which is 400 yards away. This challenging hole offers breathtaking views and an unforgettable golfing experience.

4. Coeur d'Alene Resort Golf Course, USA: Situated in Idaho, this golf course features a floating green. The 14th hole is a par-3 with a green that is entirely surrounded by water. The green is attached to a series of underwater cables and can be moved to change the distance from the tee. Golfers take a boat to reach the green and enjoy the unique experience of hitting onto a floating target.

5. Skyline Golf Club, New Zealand: Located on the rooftop of a building in Auckland, Skyline Golf Club offers a truly urban golfing experience. The course consists of a series of artificial turf tees and greens, allowing golfers to enjoy a round of golf with panoramic views of the city skyline. It's a creative solution to the space limitations in a bustling city.

These are just a few examples of the world's most unusual golf courses. Each offers a distinct experience, showcasing the creativity and innovation of golf course designers and the beauty of the surrounding landscapes.