Past volcanic activity, along with the effects of shoreline erosion and glaciers, makes Alaska Peninsula National Wildlife Refuge one of the most scenic refuges in the state. The area is also known for its great variety of wildlife, including marine species like seal, sea otter and whale. For many hunters, a dream hunt here would be for brown bear, but hunters looking for a less-expensive hunting adventure often come for caribou and moose. A popular subsistence hunting area, the refuge also attracts many nonresident hunters, who can find guide services, air charters or boat rentals available, depending on the type of hunt they prefer. The northern Alaska Peninsula caribou herd is one of 13 major herds within the state. Herd size fluctuates naturally and has varied from 2,000 to 20,000 animals in recent decades. The herd migrates up to 200 miles each year. As with most Alaska refuges, seasons for black bear, wolf and wolverine overlap with the caribou and moose season, so hunters may want to consider a tag for these species.