Question: Cypress Lake is a 2 acre swamp-like lake in the heart of which coeducational, public, research university in Lafayette, in the U.S. state of Louisiana, that started as a buffalo wallow?

 Today it is a unique university landmark that is a habitat for native irises, alligators, turtles, birds and fish, as well as a hangout for students and a point of interest for tourists visiting Lafayette, Louisiana. Cypress Lake is a 2 acre swamp-like lake in the heart of the University of Louisiana at Lafayette campus that started as a buffalo wallow.  Cypress Lake is casually called "The Swamp," which is also the nickname of the Louisiana–Lafayette Ragin' Cajuns stadium, named Cajun Field. <SEP> The University of Louisiana at Lafayette (UL Lafayette, ULL, or UL) is a coeducational, public, research university in Lafayette, in the U.S. state of Louisiana.  It has the largest enrollment within the nine-campus University of Louisiana System and has the second largest enrollment in Louisiana. <SEP> Louisiana Tech University, colloquially referred to as Louisiana Tech or La.  Tech, is a coeducational public research university in Ruston, Louisiana, United States.  Louisiana Tech is designated as a Tier One national university by the 2018 U.S. News & World Report college rankings and is the only Tier One national university in the nine-member University of Louisiana System.  It is a space grant college, member of the Southeastern Universities Research Association, member of the Association of Public and Land-Grant Universities, is a "R3: Doctoral University with moderate research activity," according to the Carnegie Foundation Doctoral University. Louisiana Tech conducts research with ongoing projects funded by agencies such as National Aeronautics and Space Administration (NASA), the National Institutes of Health (NIH), the National Science Foundation (NSF), the Department of Defense (DoD), and the Federal Aviation Administration (FAA).  Louisiana Tech is one of less than 50 comprehensive research universities in the nation and the only university in Louisiana to be designated as a National Center of Academic Excellence in Information Assurance Education and Research and a National Center of Academic Excellence in Cyber Defense Education and Research by the National Security Agency (NSA) and the United States Department of Homeland Security (DHS).  Also, the FAA named Louisiana Tech to the National Center of Excellence for Unmanned Aircraft Systems.  The university is known for its engineering and science programs. <SEP> Lafayette Heritage Trail Park is a public recreational park located in Tallahassee, Florida.  The park offers many activities such as picnicking, hiking, fishing, kayaking, and mountain biking.  The central feature of the park is Lake Piney Z, a 200 acre lake that is part of the Lake Lafayette system.  "Two dams constructed around 1950 divided the lake into three sections, Upper Lafayette continues to be a wet prairie, Piney Z Lake is a 200 acre open water lake, and Lower Lafayette resembles a cypress-covered Louisiana bayou."  The park is adjacent to Piney Z Plantation neighborhood and Tom Brown Park.  The park is open sunrise to sunset.