the mangroves at the low tide, ao phang nga national park, thailand

andaman ao phang nga ko thalu ok koh talu phangnga thailand aerial roots brackish canal canoe coast coastline ecotourism environment forest greenery indian ocean indochina island kayak landmark landscape low tide mangrove mountain national park nature bay plant recreation resort row boat saline sea shore siam sightseeing southeast asia tour tourism travel tree trip tropic vacation vegetation