The Source of the Bourne Gutter is a natural spring located in the village of Bourne End, near the town of Bourne, Lincolnshire, England. It is a popular tourist attraction and a site of significant geological interest. The spring emerges from a limestone cliff face and flows into a small pool, creating a picturesque scene. The water is crystal clear and remains at a constant temperature of around 10°C (50°F) throughout the year. The surrounding area is tranquil and scenic, with woodland walks and picnic spots nearby. The spring is also home to a variety of wildlife, including fish, birds, and insects.