Queen Charlotte Sound / Tōtaranui is the easternmost and largest of the Marlborough Sounds, a stunning network of ancient, sunken river valleys, or rias, located at the top of New Zealand's South Island. This expansive, sheltered sound is characterized by long, winding fingers of steep, forested terrain plunging into deep, sapphire-blue waters, creating a complex coastline dotted with countless secluded bays, coves, and inlets. The calm, protected waters stand in stark contrast to the notoriously rough Cook Strait, into which the sound empties via Tory Channel. Its dramatic geography, with ridgelines often exceeding 400 meters and peaks over 800 meters, provides a breathtaking backdrop for anglers. The sound holds deep cultural significance, having been a vital area for Māori for over a thousand years and later used extensively by Captain James Cook. Today, it serves as a major recreational boating area and a gateway for inter-island ferries, with Picton as its main port town and the hub for accessing its rich marine environment.