Trinity Shores of Port Lavaca is in Port Lavaca Texas located near the center point of the 275-mile Texas Gulf Coast, offering visitors a wide variety of public park facilities, RV accommodations and excellent marinas. The tropical, seaside environment and community charm add to an attractive, family-oriented vacation! People from all over Texas are starting to discover this little jewel, nestled in the middle of Texas's Gulf Coast. Port Lavaca is centrally located from the big cities of Houston, San Antonio and Corpus Christi.