The park is located in the Queen Charlotte Strait around 30 kilometres (19 mi) east of Port McNeill, a town situated on Vancouver Island.

In terms of its functions, the park offers tourism opportunities such as kayaking and whale watching, preserves a wide array of wildlife including many at-risk species, and has a long history of use by First Nation peoples.

Examples of the marine life that inhabit the waters of the park include cutthroat trout and salmon varieties such as pink, chinook, or coho.

[2][3] Likewise, the park is home to many examples of marine mammals including harbor seals, sea lions, porpoises, dolphins and a variety of whale species.

[1] Additionally, the islands are home to both clam gardens that are dotted around intertidal areas[4] as well as a historically sporadic community of pacific white-sided dolphins.

[1] In terms of flora, the forests across the islands contain 63% of British Columbia's protected examples of Outer Fiordland Ecosection Coastal Western Hemlock.

[6] Species at risk whose range includes areas of the marine park are the northern abalone, marbled murrelet, killer whale, and sea otter.

[12] The primary purpose of the creation of the park was to protect the natural ecosystem because it represents large portions of three ecosections of the British Columbia coast and is home to several uncommon species.

However, the arrival of European settlers and disease to the West Coast caused the dispossession and abandonment of sacred Kwakwa̱ka̱ʼwakw territory, and forced movement and increased interactions between groups.

Fish farms (commercial breeding) in the Broughton archipelago devastated local stocks through various changes to the environment, such as diseases like sea lice (see below) and intensified competition between species.

The MTTC has, and continues to play a large role in ensuring a collaborative approach to resource management decisions in the region, both on land and in the water.

[16] Media platforms like Facebook and magazines like The Tyee have also been significant for informing the public about these issues and ensuring that concerns are recognized and dealt with.

[18] To this day, these actions have seen great effect towards conservation efforts, even going as far as having the BC government agree to phase out all fish farms rejected by the council.

[citation needed] Sea lice are common in both wild and farmed adult salmon populations, they feed on the host surface tissue leading to mortality in high infection rates.

[23] In the 1970s, fish farms were located on the Sunshine Coast, but due to warming water temperatures, there were severe losses in product caused by algal blooms and disease.