The park protects a number of archaeological sites, evidence that the area has been inhabited for thousands of years by First Nations people drawn to the region by the abundance of natural resources.

A great diversity of flora and fauna is protected within an extensive range of terrestrial, intertidal and marine environments. Nuchatlitz is an excellent place to study intertidal life, as many tide pools can be found throughout the maze of islets and reefs that make up the park.

The 2,135-hectare park (803 hectares upland and 1,332 hectares foreshore) also protects vital habitat for British Columbia's recovering Sea Otter population. Decimated by the fur trade in the early 1900s, and extirpated in British Columbia by the late 1920s, sea otters from Alaska were transplanted to the northwest coastal waters in 1969-1972. The present population of sea otters on Vancouver Island's west coast is currently estimated at approximately 2,000.

The remote islands are becoming a popular kayaking destination, offering both exposed coast and protected waters for paddling, quiet coves and a multitude of beaches. A wealth of opportunities for outdoor enthusiasts exists, including boating, sport fishing, and wildlife viewing within the park and its surrounding area.

Wilderness, backcountry or walk-in camping is allowed on the northwest tip of Nootka Island and the many small island groups within the park. There are some small developed sites accessible by kayaks and smaller boats at Rosa Island. Undeveloped but useable areas are scattered throughout the island groups and on the northwest coast of Nootka Island. Pit toilets are located at Rosa Island and at some of these other sites. This park is accessible year round; there is no fee for winter camping.