With over 3 million acres, Katmai National Park has a remote feel and plenty of wildlife, most notably a large population of bears. Katmai, named after a volcano that sits at its center, has a variety of easily accessible eco-tourism activities, including trekking and kayak trips, interpretative hikes, backcountry skiing, and fly fishing. Katmai's bears, which number about 2,000, stay in the area because of the salmon-packed rivers. The ursine inhabitants are managed by the National Park Service and the wealth of fresh food in the rivers makes them generally unaggressive toward human visitors. These mammoth creatures are best seen from the park's bear viewing platforms, where visitors are able to get some amazing snapshots, especially during salmon run season.