The season extends from June 15 to September 15. During that time a full schedule of activities is carried on by the naturalist staff of the park and food and lodging are available in or near the park. During the remainder of the year accommodations are limited chiefly to those provided in the town of Jackson, a few miles south of the park. The four major highways leading to the park are kept open during the winter months and visitors can enjoy the scenic wonders of the Teton Range in its winter setting and participate in the winter sports for which Jackson Hole is famous. What to Wear Even during the summer months persons planning to camp in the park should provide themselves with camping equipment suitable for freezing temperatures. For trips into the mountains, visitors are advised to wear good hiking shoes and to take clothing suitable for extreme changes of temperature. Sudden showers or snowstorms often occur, especially during June and early July. Accommodations and Miscellaneous Services Overnight accommodations are supplied by the several ranches, dude ranches, and lodges in the park and at the town of Jackson. Meals are served at most of these establishments. A complete list of accommodations may be obtained by writing to the superintendent of the park. Well-developed campgrounds are available at Jenny, String, and Jackson Lakes. These campgrounds are supplied with running water, sanitary facilities, cooking grates, and tables. There are also camping sites away from the main campgrounds suitable for overnight stops for hikers or pack outfits. Large organized groups are advised to make advance arrangements for camp sites before coming to the park. The supply of firewood for campfires is very limited and campers should bring kerosene or gasoline stoves for cooking in the campgrounds. Campfire permits are required for fires to be built in any place other than the regularly designated campgrounds. _Guide Service_—At Jenny Lake there is an authorized official mountain-climbing guide who will guide climbing parties to the summits of the major peaks. He gives instructions in mountain climbing at frequent intervals during the climbing season. Information concerning rates for all climbs may be obtained from the superintendent of the park or from the mountain-climbing guide. Winter and early spring skiing is possible in the park, and skiing guides, ski equipment, and instructions in skiing are available at Jackson, Wyo. _Saddle Horses_—The park saddle horse concessioner maintains an excellent string of saddle and pack horses, with good equipment for short or long trips. Saddle horses may be rented without guides, but only to ride over well-defined trails in designated areas.