Channel map

Port Authority of Thailand It is the agency responsible for mapping the waterways and deltas of the Chao Phraya River.
and a map of the Chao Phraya River The services are provided to those interested as follows:

You can contact to purchase at Waterway Department, 9th floor, office building Port Authority of Thailand
Khlong Toei District, Bangkok 10110 Tel. 02 269 5284 – 5 Fax 02 269 5279