Chatterbox Falls, Waterfall in Princess Louisa Marine Provincial Park, British Columbia, Canada

Chatterbox Falls is a waterfall at the head of Princess Louisa Inlet in British Columbia, where Loquilts River drops over a granite cliff into the inlet. It lies within Princess Louisa Marine Provincial Park, managed by BC Parks with the Princess Louisa International Society. Boaters from around the world come to the falls.

Indigenous peoples of the British Columbia coast knew of this place long before European explorers documented the region in the late 1800s. The provincial park was established later to protect this marine landscape and its natural features.

The falls mark the end of Princess Louisa Inlet, a destination boaters travel to from around the world; the inlet is reached by water, with no road access. BC Parks manages the site with the Princess Louisa International Society, a volunteer group that helps care for the marine park.

Reaching the waterfall requires either boat transportation or hiking along established trails, with summer providing the most reliable conditions for viewing. Visitors should prepare for changing weather and steep terrain.

Just upstream from Chatterbox Falls, the Loquilts River drops over James Bruce Falls, which at 2,755 feet (840 m) is the tallest waterfall in North America. Boaters anchored at the falls can look for it above the inlet's head.