Tasman Bay, known in Māori as Te Tai-o-Aorere, is a substantial and productive V-shaped bay on the northern coast of New Zealand's South Island. It stretches approximately 120 kilometres of coastline and is up to 70 kilometres across at its widest point, bounded by Separation Point to the west and Cape Soucis to the east. The bay is characterized by a diverse marine environment that includes expansive sheltered inlets like Waimea and Moutere, rugged exposed coastlines with prominent headlands, and significant natural features such as the 13-kilometre-long Boulder Bank. This mix of habitats, from shallow estuaries to deeper offshore reefs, supports a rich variety of saltwater fish species, making it a premier destination for both boat-based and shore-based angling.