Introduction to Morne Seychelles National Park: The Morne Seychelles National Park, established in 1979, is the largest national park in the area, covering more than 20% of Mahe Island. The entire national park is 10 kilometers long and 2 to 4 kilometers wide, and has as many as 12 different mountain trails for hiking. The total length of all mountain trails is more than 15 kilometers, enough for hiking enthusiasts to spend half a day here. enjoy.