The best diving in Southeast Asia nearly always takes place in remote locations, and in areas where fishing and other activities which are harmful to the environment are forbidden. Local authorities need to employ rangers/guards and the necessary infrastructure to maintain the national marine parks and protect them from illegal activities. Different countries have varying entrance and diving fees for their marine parks, but the money is payable direct to the authorities and not part of the cruise or day trip. Therefore, dive centers separate the cost in their pricing. The fees normally need to be paid in local currency (Thai Baht), but US Dollars are required in Myanmar.