Only tour guides (sea coast) a yellow card. Tours give Thailand tourists or foreign tourists. In the marine zones or Islands, with the distance from the coast to destinations not more than 40 nautical miles.
Only Guide (Coastal) yellow cards tours to Thailand tourists or foreigners. In marine areas and islands are at a distance from the coast to the sights not exceeding 40 nautical miles.
Guiding specific (SEA) coast yellow cards guides to tourists or foreigners in sea area. The various islands by the distance from the coast to travel no more than 40 nautical miles.