The single most useful thing to know about Siruvani is that it is not a trail. It is a closed reserve forest with a barrier across the road, and the day is structured around that barrier. Get this straight before you plan and the trip is easy; assume it is a hill you can walk up and you will spend a morning driving to a locked gate.
The shape of the day
Everything starts at the Inchikunnu check post on the Siruvani Main Road, where the Forest Department decides whether you go in and beyond which private vehicles need permission. The ordinary way to get that permission is the programme run by Mannarkkad Eco-tourism: you pay at the gate, you take a forest guide, and then — this is the part people do not expect — you drive your own vehicle onward, with the guide, through the forest. There is no departmental bus and no public transport past the gate.
From the check post to the dam is 9.7 km, which we measured by road; Kerala Tourism describes it as “around 10 km”, and the two agree. Allow about a quarter of an hour, more if the guide stops for something worth stopping for. At the dam the walking starts: roughly an hour uphill to the Keralamedu grasslands on the Kerala–Tamil Nadu border, and the same back. It is a guided forest walk rather than a technical trek, but it is a climb, on forest ground, at the guide’s pace.
Rates and timings
Kerala Tourism publishes the programme’s rates: ₹35 an adult, ₹10 a child and ₹160 for foreign nationals, plus ₹40 for a camera, ₹400 for the guide, and a vehicle charge of ₹800 for a car or jeep or ₹1,100 for a tempo or minibus. Visiting hours are 09:00 to 15:00. Government rates change without notice, so treat these as the published figures rather than a quotation.
How to book — and the trap
Phone the Divisional Forest Officer, Mannarkkad, on +91 4924 222574. That is the working channel, and it is also how you find out whether the gate is open at all, because the programme is suspended at short notice for weather and forest conditions.
Kerala Tourism still directs visitors to keralaforestecotourism.com. On 24 August 2026 that domain did not resolve at all — not a slow site, no DNS record — and the department’s own ecotourism.forest.kerala.gov.in booking portal was serving a broken security certificate chain. Do not build a trip around booking online here until that changes.
Getting to the gate
Measured by road from the check post: Mannarkkad bus stand 23.1 km (about 25 minutes), Palakkad Junction station 34.7 km, Palakkad KSRTC 39.0 km, Coimbatore Junction 58.5 km and Coimbatore airport 68.8 km. Kerala Tourism’s page gives 41 km to Coimbatore airport; no road route matches that, and even the straight line is about 50 km, so plan on ours. Buses will get you as far as Mannarkkad; the last 23 km need a taxi or your own car, and since the safari is driven, your own car is the simpler answer.
When to go, and who it suits
October to February, after the rains have cleared and before the heat. This catchment takes 2,000–4,500 mm a year and the programme is weather-dependent, so the monsoon months are the likeliest to be cancelled. Because the long stretch is driven, this is one of the few forest days that works for someone who cannot manage an hour uphill — they can do the drive and the reservoir and skip the grassland. Carry your own water and food: nothing is sold past the gate.
- Ring the Mannarkkad DFO on +91 4924 222574 — the gate is not always open
- Bring your own vehicle; the safari is driven, and there is no transport past the check post
- Published rates: ₹35 adult, ₹10 child, ₹160 foreign national, ₹40 camera, ₹400 guide, ₹800–₹1,100 vehicle
- 09:00 to 15:00, and the drive alone is half an hour of it in each direction
- Do not rely on booking online — the department’s booking domain was dead when we checked