If you want to climb Mt. Fuji this year, you have to make a reservation. At least you need a reservation if you want to climb the most popular trail, the Yoshida trail in Yamanashi Prefecture. The Yoshida trail reservation site opened yesterday, and they take 3,000 people per day starting on July 1. You have to pay 2,000 yen per person to use the trail. If you want to stay overnight, you have to make another reservation at a mountain hut. Remember that Mt. Fuji is 3,776 meters high. You can get sick if you climb that high, so you need to take breaks every hour. Also, it can get very cold on top of the mountain.  If you decide to climb Mt. Fuji, make a reservation, and make sure that you are healthy and that you have the right clothes.  (142 words)