Banasura Sagar Dam reservoir by Dinesh Valke, via Wikimedia Commons, CC BY-SA 2.0
Attraction · Wayanad
Banasura Sagar Dam
The largest earth dam in India, with islands formed where the reservoir drowned the hills.
Time needed2 – 3 hrs
BestSep – Jan
Known forLargest earth dam in India
About
Banasura Sagar Dam
The largest earth dam in India and the second largest in Asia, holding a reservoir dotted with islands that were hilltops before the valley was flooded. It is a landscape stop rather than an engineering one — the reason to come is the view across the water to the Banasura hills, and the boat ride among the islands.
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What to see
What to see
At the dam
- The reservoir and its scatter of islands — submerged hilltops
- Speedboat and pedal-boat trips among the islands
- The dam wall and the Banasura hill backdrop
- A children’s park and gardens at the base
Getting there
How to reach
From Wayanad
- About 21 km from Kalpetta, roughly 45 minutes near Padinjarathara
- Car with driver; local buses reach the nearby village only
- A short walk or a shuttle from the car park to the dam site
Best time
When to visit
Timing
- September to January, when the reservoir is full after the monsoon and the hills are green
- Late afternoon for the light across the water
- Water levels drop noticeably by late dry season, which reduces the boating
- Avoid peak monsoon, when boating is suspended in poor weather
Visitor tips
Practical tips
Practicalities
- Entry and boating are separately ticketed; boat queues are long at weekends
- Life jackets are provided and should be worn
- The walk from the car park is uphill and can be tiring in the heat
- Trekking to Banasura Peak starts nearby and is a separate, longer outing
Nearby
Nearby
Chembra Peak
1.5 hrs
Edakkal Caves
1.5 hrs
Kalpetta
45 min
Questions
Common questions
The largest earth dam in India and the second largest in Asia, built across the Karamanathodu river. Its reservoir contains a scatter of small islands, which are the tops of hills submerged when the valley flooded.
As a landscape and boating stop, yes — particularly September to January when the reservoir is full. It is not an engineering attraction in any detailed sense, so come for the view and the islands rather than the dam itself.
September to January, after the monsoon has filled the reservoir. By late dry season water levels fall and the boating is reduced. Late afternoon gives the best light.
Two to three hours including the drive from Kalpetta, the walk up and a boat trip. Weekend boat queues can add substantially to that.
No. It is suspended in poor weather and reduced when water levels are low late in the dry season. Life jackets are provided and should be worn throughout.
Yes — it is among the easier Wayanad sights for children, with boating and a park at the base. The uphill walk from the car park is the main effort.
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