This is the main attraction and the most beautiful temple in Kanchanaburi.
It’s composed of 2 different temples with 2 different entrances. Be prepared to climb a lot of stairs !
Wat Tham Sua is the main temple with the giant sitting buddha. I strongly suggest to climb on top of the biggest tower (on the left near the entrance) where you can have the best view of the whole complex.
Wat Tham Khao Noi is the chinese tower temple. It’s less impressive than wat Tham Sua but it has great views from the top of the tower (I think 8 or 9 floors to climb though!).
In term of photography, I recommend to go there either for sunrise or sunset to get the best colours.
For drone, it’s very simple to launch the drone from one of the parkings.
I also recommend to drive around the rice fields to get some views from far away. There are some good cafes like Rak Kanna Café or Meena Café which are very good for food, drinks and views of the temples.