A short trip to hogenakkal falls which is about 100 km from Bangalore.
It is a wonderful place with multiple waterfalls, a beautiful top arierl view without any requirement of drone and a dip in the river.
It is the end point of the famous Kaveri River.
The cost for the boat is 700 and if you want him to stop while you take a dip in the water just ask and bargain.
it would be around 200 however highly depends on your bargaining capability.
This place is a must visit if you are in Bangalore.