have some dolphins coming up. if you look a little bit to your right i saw another one. reporter: west ship island is the destination. part of the gulf island national seashore and home to more than 300 types of birds. captain louie scremetta s company runs this tour for the national park service. the oil spill now threatens his protected paradise just ten miles offshore. they can t get this thing capped off, it s going to be a ka stas tcatastrophe for the na resources in this region. katrina is long in our past. that s nothing compared to what what s out there. have a good time today. reporter: the scenery here has definitely changed. they want to know, is the oil here. reporter: not yet. so, the beach tours continue. and we re just going to go this direction down the beach and see what we find. reporter: only minutes later,