Hard Hat Tour: If naval history "floats your boat" have we tour for you. That's coming up on Passport To Texas. Passport to Texas from Texas Parks and Wildlife. Anchored in the Buffalo Bayou on the Houston Ship Channel is one of grandest pieces of military history-spanning two football fields in length and some 16 stories high floats the U.S.S. Texas. "She was completed prior to WWI and began her service in the Tampico Incident, and then in WWII she served in a number of campaigns, and perhaps most notably as the flagship of the task force off Omaha Beach on D-day." Barry Ward is the Director of Battleship Texas State Historic Site. Normally the public only gets to see a small portion of the ship, through self-guided tours. But once a month, the site opens up this nautical behemoth for extensive guided "hard hat" tours. "You see everything that is recently accessible that you can't let the general public see on their own. So you are seeing the interior boiler room, machinery spaces, inside the ammunition handling systems..." And as the name implies, participants are required to wear hard hats, provided by the park. The three-and-a-half hour tour includes climbing ladders and squeezing through hatches. But while the exploration can be physically demanding, it's not difficult to comprehend the significance of the surroundings. To learn more about the Hard Hat Tour, come to passporttotexas.org. Coming up on tomorrow's show, a chance to meet the men who served aboard the Battleship Texas. "It's a unique opportunity that will not be there in a few more years..." For Texas Parks and Wildlife, I'm Cecilia Nasti.