When we read about this information and comparing from Field trips in this course, we think Phang-nga Bay can attempt to nominate as the world heritage site. Because Phang-nga is a prominent example of major changes in biology and ecology. Led to the evolution of the Earth's surface and oceans. Coastal ecosystems, plants and animals are natural phenomena that are unique.Or is an area of natural beauty, is the habitat of rare plants and animal species and is in danger. A variety of sources including plant and animal species that are important and valuable features.Access to the world heritage site, it is a good story because it populations in the world will know more in Phang Nga province. In tourism, the population of the world will get to know better and are ready to take care of the environment, conservation, waste that occurs in the area. But worry if it is declared as a world heritage site, will have to limit the number of tourists who will visit a national park in Phang-nga province, which will cause a decrease in revenues from tourists. It is also more travelers each year has increased. If it is declared as a world heritage site, you may have to maintain care for the environment.