190 Port Rd, Port Isabel. Free admission. (956) 433-1015. Mayor Cantu Jr. & the Port Isabel City Commissioners invite you to attend & participate in a Port Isabel Holiday Tradition! Parade starts at 6:00 pm at Laguna Madre Youth Center and ends at Port Isabel Event & Cultural Center. Tree lighting starts at 7:00 pm at Beulah Lee Park. Santa Claus, performances and vendors. Open to the public.