Provided herein is a pet carrier system for providing a defined area on a kayak for safe travel of a pet. In some embodiments, the pet carrier system includes a corral made of at least three vertical posts securable to the kayak, at least two railing bars connecting the three vertical posts, and at least three connectors for securing the vertical posts to the kayak. The corral provides a fenced structure from the front end of the kayak up to the area in front of the cockpit of the kayak. The system would dissuade a pet from moving transversely relative to the longitudinal axis of the kayak and would persuade the pet to either remain in the defined space or to move relatively aligned with the longitudinal axis of the kayak. This way, the pet is less likely to overstep onto either side of the kayak and cause the kayak to capsize.