The Teifi Estuary is located in Wales, where the River Teifi meets the Cardigan Bay. This area is known for its rich biodiversity, providing a habitat for various species of birds, fish, and other wildlife. The estuary is also a popular spot for activities like birdwatching, fishing, and kayaking. The estuary is part of the Teifi Marshes Nature Reserve, which protects the unique ecosystems found in the region. The surrounding landscape features wetlands, mudflats, and salt marshes, making it an important area for conservation. The estuary plays a vital role in the local environment and economy.