glor: good evening. for so many people on the gulf, the fourth of july weekend is hardly a holiday. on day 75, here is the latest: a ship described as the world s largest oil skimmer is now in the gulf. the new admiral in charge toured the oil spill by air, and a few gulf areas have been reopened to fishing. mark strassmann is in grand isle, louisiana, tonight. mark? reporter: on the summer s busiest holiday weekend, beaches like this one ought to be packed, but take a look. there s been nobody around all day, hazmat suits instead of bathing suits on a changed gulf coast. take a picture of that. pure gold. reporter: on july 4th weekend, this is what the gulf should look like. this is heaven. this is like heaven. reporter: brenda and pete bogs caught speckled trout on bay rambo, one of louisiana s few fishing areas reopened since the oil crisis began. we weren t sure if we would be able to fish. reporter: now that you are? well, i really would like to be able