Arvalam Waterfalls is in Sanquelim in north Goa.
It is rougly 30km away from from the Panjim Kadamba bus stand. Also known as Harvalem Falls, it forms a huge pool of water at its base – almost as big as a lake.
This is a seasonal waterfalls, and at its best post monsoons.
The falls is a picturesque with the lake and and Rudreshwar Temple. One can visit the falls from top as well as from lower end. The lower end has lot of parking space.