What are the shortest and easiest ways to get there and how much do they costs?
How about starting from Bangkok? Do I use Ekimei station?
You do not say where you are starting from, so it is a bit hard to answer your question. But if you are in Chachoengsao City and do not have a car, the best way would be by taxi. But I suggest you negotiate the fare before you start.
The temple does not cost anything, but there are many stalls selling souvenirs, food and drinks.
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