What to expect
Grand Anicut
Also called Kallanai, this is one of the oldest functioning water-diversion dams in the world, built across the Kaveri by the Chola king Karikalan around the 2nd century CE. Constructed of unhewn stone about 300 metres long, it still regulates irrigation across the Thanjavur delta after nearly two millennia. It is a landmark of ancient Tamil hydraulic engineering and a popular picnic spot.
Practical guide
Plan Grand Anicut
Who's going?Tailor Grand Anicut to your trip
Typedam
Nearest baseKallanai
DistrictThanjavur
Best timeOctober to March is the cooler, drier…
Time neededAbout an hour
EntryFree
Grand Anicut is planned from Kallanai, one of the travel bases in Thanjavur district. Use Kallanai for stays, food and local transport, then plan this place as a focused stop.
Getting there
How to visit
- Base yourself in Kallanai or nearby in Thanjavur, then confirm the last-mile route locally before travel.
- If access depends on temple, museum or seasonal rules, check on the day before you go.
Distance by road
- Tiruchirappalli (Trichy)58 km
- Madurai190 km
- Puducherry170 km
- Coimbatore215 km
- Chennai350 km
Road km to Thanjavur; ghat roads and traffic vary — allow extra.
Timing
Best time
October to March is the cooler, drier season in the Cauvery delta.
Weather in Grand AnicutSeasonal guide
Live forecast loads in your browser.
Today at Grand Anicut
Sunrise6:05 am
Sunset6:25 pm
Golden hour best light5:25 pm–6:25 pm
Blue hour after sunset6:25 pm–6:50 pm
Sun sets toward compass bearingW · 279°
Moon tonight🌖 Waning gibbous · 83%
South-west monsoon. June to September brings heavy rain to Tamil Nadu. Trails, falls and ghat roads can be slippery, swollen or closed at short notice, and forest departments sometimes suspend access. Check locally on the day before you travel.
Sun and moon are calculated for this location and shown in IST. Photography windows are the hour around sunrise and sunset; the sunset bearing is degrees clockwise from true north. Moon phase is accurate to about half a day.
Stay · eat · do · rent · see · shop
Stays, food & things to do near Grand Anicut
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Grand Anicut — at a glance
TimingsOpen all day (daytime best)
Best timeAugust to January, when the Kaveri is in flow
Entry: Free
Getting here
How to reach Grand Anicut
Kallanai, ~20 km from Tiruchirappalli; ~48 km from Thanjavur
Getting around Grand Anicut
We have not assessed physical access at this place yet. Across India, step-free routes, handrails and accessible toilets are the exception rather than the rule, and pavements are often interrupted — if step-free access matters to you, contact the site or a local operator before committing to the trip.
If you need help at Grand Anicut
112All emergencies (police · fire · medical)The single number to call in any emergency (ERSS).100Police101Fire108Ambulance (emergency / EMS)1091Women’s helpline (distress)1098Child helpline1363Tourist helpline (India, 24×7, multilingual)
Emergency numbers are verified against official government and state tourism sources. 112 works anywhere in India.
Nearby
What’s near Grand Anicut
On the map
Where Grand Anicut is
Good to know
Grand Anicut — frequently asked
When is the best time to visit Grand Anicut?
October to March is the cooler, drier season in the Cauvery delta.
What are the entry fee and timings at Grand Anicut?
Entry: Free. Timings: Open all day (daytime best).
How do I reach Grand Anicut?
Base yourself in Kallanai or nearby in Thanjavur, then confirm the last-mile route locally before travel. If access depends on temple, museum or seasonal rules, check on the day before you go.
How much time do I need for Grand Anicut?
About an hour.
What else is near Grand Anicut?
Nearby you can pair Poondi Madha Basilica (13.7 km), Kandiyur Brahma Sirakandeeswarar Temple (31.3 km), Thyagaraja Aradhana Samadhi (31.5 km), Aiyarappar Temple, Thiruvaiyaru (32.0 km).
Read before you go
Grand Anicut guides, stories & itineraries
Stories & history of Grand Anicut
Written about Grand Anicut itself — its history, its legends and the arguments about them.
Tamil Nadu-wide guides & itineraries
Route-level itineraries and practical guides for the rest of Tamil Nadu.
Image credits
- Grand Anicut:Ashwin Kumar from Bangalore, India, CC BY-SA 2.0, via Wikimedia Commons · CC BY-SA 2.0