Bedugul lake is a place where in the middle of the lake there is a temple of ulun danu in bedugul.
If you see the Indonesian money in fractions fifty thousand rupiah long yaaa that's where the photos used in the fifty thousand rupiah denomination.
Here you can ride a speedboat or a regular boat to circle the lake.
The air here is quite cool because it is in the mountains or highlands, perfect for enjoying coffee while viewing the lake.