As the weather gets warmer, many people enjoy going outdoors for sports and to experience nature. With much of the country covered in forests and mountains, hikng is a very popular activity in Japan, especially once the spring starts. There are trails in every part of Japan, ranging from short nature walks that can be easily completed in a day, to long mountain hikes that require strong legs and several days' endurance. Most trails are well-marked, and many include solid paths for navigating uneven or marshy ground.