Dudhsagar Falls (Sea of Milk ) is a four-tiered waterfall located on the Mandovi River in the Indian state of Goa. It is 60 km from Panaji by road and is located on the Madgao -Belgaum rail route about 46 km east of Madgaon. Dudhsagar Falls is amongst India's tallest waterfalls with a height of 310 m(1017 feet).

The falls is located in the Bhagwan Mahaveer Sanctuary and Mollem National Park among the Western ghats. The waterfall forms the border between Karnataka and Goa states. The area is surrounded by a deciduous forests with a rich bio diversity.
The falls during the monsoon season are fed by rains and form a huge force of water.

The nearest rail station accessible by road to the falls is Castle Rock station. Visitors could get in a train from here and disembark at the Dudhsagar stop. visitors have to climb down the steep ladder of the rail compartment in a short 1-2 minute unscheduled stop.

There is a 200 m train tunnel that is totally dark which makes the walk a bit tougher.There is absolutely no access to power or cellular signal at this location just as there is no access to road transportation.
Caution needs to be exercised when planning a trip to the falls with elders or children. There are many outdoor adventure organizations that organize monsoon tre s to Dudhsagar for people interested in adventures that includes trekking from Castle Rock.