Krabi's Hat Nappharat Thara-Mu Ko Phi Phi National Park has had a jump in annual revenue, reaching more than 270 million baht, making it the highest-earning national park in the country.
With Thailand entering its high tourist season next month, Ratchanok Paenoi, park chief, said it has become the top destination among marine national parks this year.
From October last year to last month, the park collected 276 million baht worth of entry fees from 1.1 million visitors, an increase from the 72.5 million baht of revenue during the same period last year.
Ms Ratchanok added that the entry fee collected last month through the park's e-ticket system had risen by 46%.
The park has also improved its tourist facilities, including bathroom renovation in Maya Bay, mooring buoy installation on coastal areas for docking ships and beach area management.
The park chief said that the number of park visitors during this year's high tourist season starting next month is expected to be higher than the same period last year.
Visitors to the marine national parks along the Andaman coast are also predicted to record more visitors than last year.
Meanwhile, Deputy Prime Minister and Natural Resource and Environment Minister Phatcharavat Wongsuwan said on Monday that five parks in Thailand had been listed among the top 100 best beaches in the world by World Beach Guide this year.