^ I was cautious with wording, cannot find anything conclusive re T building ships there
from that BP article I quoted, sounds as though the ships were already there:
Mr Erbprem said: "The reason King Taksin the Great chose Chanthaburi as his base was because Chanthaburi was located the farthest distance from the Burmese and was abundant with natural resources and had a big river where many cannon-equipped junks were being docked.
"King Taksin needed to gather weapons and forces. Those junks were equipped with weapons and capable of carrying more weapons and towing small ships."
Kammanit Direksilp, head of King Taksin's Shipyard Museum at Samet Ngam in Chanthaburi, said King Taksin used Chanthaburi as his base for gathering junks to support his operation. It is believed he used a 4.4-square-kilometre area in Samet Ngam as his shipyard. This area is full of waterways and located only 4km away from the river mouth."
In 1981/2, the wreckage of a 24-metre-long and 8-metre-wide ship believed to be one of King Taksin's warships was unearthed there together with Chinese pottery. Similar wreckage and more than 100 ancient artefacts and carpenters' tools were later found at the site. There is archaeological evidence that suggests seven shipyards were lined up there at that time.
It took about six months for King Taksin the Great to prepare a naval fleet to regain Ayutthaya. The troops travelled by water from Chanthaburi past Rayong, Chon Buri, Pak Nam Samut Prakan, Thon Buri and Tambon Phaniad.
"In the 11th lunar month of the year of the pig (1767), the king led his 100-vessel naval fleet and 5,000 soldiers to depart Chanthaburi," reads the royal chronicle.
So seems he gathered his forces with ships there; some sites refer to it as 'dockyard' and it was an established trading point with Chinese . . .
That article says it was a warship, maybe it was, but not as I have read a Thai-built one, as they identified the wood as being a pine from southern China, and the crockery bits are also of Chinese origin.
It wasn't what I expected, but a nice trip all the same - we went by accident, looking for a temple and missed a turn somewhere, saw some signs and thought why not.