Thenmala, Kerala: eco-tourism travel guide

Thenmala, in Kollam district, Kerala, is promoted as India’s first planned eco-tourism destination. It sits on the edge of the Shenduruney forest, around the Thenmala (Parappar) dam, on the Kollam–Shencottah road. The name means “honey hill” in Malayalam, from thēn (honey) and mala (hill). This guide covers the zones, the dam and boating, the musical fountain, the suspension bridge, trekking in Shenduruney, the best season, fees and timings, and how to reach it.

Thenmala is a planned eco-tourism project in Kollam district, Kerala, built around the Parappar dam reservoir on the Shenduruney forest edge. Managed by the Thenmala Ecotourism Promotion Society since 2001, it groups a culture zone, leisure zone and adventure zone, with a musical fountain, suspension bridge, boating and trekking.

Thenmala at a glance

Thenmala is a village and eco-tourism site on the eastern edge of Kollam district, Kerala, at roughly 8.95°N, 77.07°E. According to the Thenmala panchayat, it is the headquarters of the Shenduruney Wildlife Sanctuary, within the Kulathupuzha reserve forest.

The destination is built around the Thenmala dam, also called the Parappar dam, on the Kollam–Shencottah road. The Government of Kerala and the Thenmala Ecotourism Promotion Society (TEPS) describe the project as India’s first planned eco-tourism destination, developed from 2001.

The name “Thenmala” means “honey hill” in Malayalam, from thēn (honey or nectar) and mala (hill or mountain), a reference to the wild honey once gathered in these forests.

Best time to visit Thenmala

The best time to visit Thenmala is August to March, when the monsoon has filled the streams and the forest is green, and the worst of the summer heat has passed. The leisure and culture zones work year-round, but trails and waterfalls are at their best in this window.

Kollam district has a warm, humid climate. Climate-normal data for Kollam puts the average annual temperature near 27.6°C with about 2,478 mm of rain a year, the heaviest falling in the June–September monsoon. April is typically the hottest month, with daytime highs around 33°C.

If waterfalls such as Palaruvi are your priority, aim for the weeks just after the main monsoon, when flow is strong but paths are drier. Note that some forest trekking programmes close during parts of the year, so confirm dates before you plan.

How to reach Thenmala

Thenmala lies about 66 km east of Kollam and about 72 km from Thiruvananthapuram, on the Kollam–Shencottah road, which carries National Highway 744 and State Highway 2 through the town. Most visitors arrive by road from either city as a day trip or an overnight stop.

By air: the nearest airport is Thiruvananthapuram International Airport, roughly 72 km away, with the widest set of domestic and some international flights. From the airport, hire a taxi or drive via Thiruvananthapuram towards Thenmala.

By rail: Thenmala has its own small railway station on the Kollam–Sengottai line. For more frequent long-distance trains, Kollam Junction (QLN) is the practical railhead; Sengottai in Tamil Nadu is the other end of the line.

By road: state buses and taxis run from Kollam and Thiruvananthapuram towards Shencottah, passing Thenmala. If you are already touring the region, see the wider Kerala travel guide for routing ideas.

The eco-tourism project and its zones

Thenmala’s eco-tourism project is organised into three main zones — culture, leisure and adventure — set around the dam, so you move between relaxed walkways and more active trails. The leisure and adventure zones sit on either side of the dam, roughly a kilometre apart, with a battery-van shuttle linking parts of the site.

The culture zone holds the sculpture garden, where artworks explore the relationship between people and nature, along with food courts, shops and an amphitheatre. Its best-known draw is the musical fountain, covered below.

The leisure zone is the gentler side: an amphitheatre, a restaurant and a shop court selling Kerala food and forest products, plus boardwalks and the swaying suspension bridge. According to the panchayat, this is where most casual visitors spend their time.

The adventure zone carries the active programme — mountain biking, nature trails, a lotus pond, archery, rope activities, net walking and river crossing, with an elevated walkway running from the Deck Plaza toward the old Thiruvananthapuram–Shenkottai road. Separate attractions include the Butterfly Safari Park, the Nakshatra Vanam of trees linked to the 27 nakshatras, and the deer rehabilitation centre.

The dam, boating and the musical fountain

Boating at Thenmala is a one-hour ride across the Parappar reservoir, the lake held back by the Thenmala (Parappar) dam. Tickets are bought at the eco-tourism centre, and a battery-powered van takes you to the boarding point, from where you may spot elephants or deer along the forested shore.

The Thenmala dam was built under the Kallada Irrigation and Tree Crop Development Project, and the Parappar dam stands at the confluence of the Chenduruney, Kazhuthurutty and Kulathupuzha streams. Sources describe the resulting reservoir as one of Kerala’s largest, extending along the Shenduruney sanctuary; reported lake areas vary, so treat any single figure with caution.

The musical fountain in the culture zone, known as Nature’s Dance, is a water display synchronised with music. Per the panchayat and multiple reports, it runs only in the evening and night hours; some sources note no show on Mondays. Confirm the current schedule on site, as timings change.

The suspension bridge and other attractions

The suspension bridge is a swaying footbridge in the leisure zone, set among boardwalks over the forested slope — a short, popular walk rather than a strenuous one. It is one of the most photographed spots at Thenmala and is suitable for families.

The deer rehabilitation centre, about two kilometres from the Butterfly Park, is home to spotted, sambar and barking deer, viewed from elevated watchtowers. The Butterfly Safari Park, established in 2001, is described as Asia’s first of its kind and shelters roughly 120–125 of Kerala’s butterfly species; go in the morning before the light becomes harsh.

The adventure zone’s rope courses, net walks and mountain-biking trails are the busier, more physical draws, while the sculpture garden and Nakshatra Vanam suit a slower pace. Together these let you build a half-day or full-day visit around your energy level.

Shenduruney sanctuary and trekking

Thenmala is the gateway to the Shenduruney (Shendurney) Wildlife Sanctuary, a 172.403 sq km protected forest in Kollam district notified in 1984 and part of the Agasthyamalai Biosphere Reserve. Guided treks start from the Thenmala information centre and are run by the Shendurney Wildlife Division.

The sanctuary is rich in life: according to published figures it holds around 1,257 flowering-plant species (309 endemic to the Western Ghats) and about 267 bird species, along with lion-tailed macaques. The Great Eared Nightjar was first recorded here.

Kerala Tourism lists several guided programmes, with small group sizes and forest guards. Fees, routes and group limits are set by the forest division and change, so the table below is indicative — reconfirm with the Wildlife Warden before booking.

Overnight camping packages (for example tree-hut and reservoir camps) are listed from about ₹7,500 for two people, with extra guests around ₹1,500 each, as of October 2026. Availability depends on weather, so book ahead by phone.

A suggested day plan

A single full day covers Thenmala comfortably if you start early. Overnight stays make sense only if you add a guided trek or a trip to Palaruvi Falls.

• Morning: reach the eco-tourism centre by opening time, buy tickets, and visit the Butterfly Park and deer rehabilitation centre first, while the air is cool.
• Late morning: take the one-hour boat ride across the Parappar reservoir, then walk the leisure zone boardwalks and the suspension bridge.
• Afternoon: try the adventure-zone rope and net activities or a short nature trail; rest over a meal in the culture zone.
• Evening: stay for the Nature’s Dance musical fountain if it is running that day, then head to your base in Thenmala or Kollam.
• Next day (optional): add a guided Shenduruney trek or drive to Palaruvi Falls, about 16 km away.

Where to stay

Thenmala itself has limited accommodation, so most visitors base in or near the town, at the forest camps, or in Kollam about 66 km away. Book ahead in the August–March season, when weekends fill quickly.

• Budget (about ₹1,000–2,500 a night, indicative, October 2026): small lodges and homestays around Thenmala and Punalur, simple and close to the site.
• Mid-range (about ₹2,500–5,000): resorts and guesthouses on the forest edge and towards Kollam, often with their own dining.
• Forest camps: Shendurney Wildlife Division camping packages, including tree-hut stays, from about ₹7,500 for two, booked through the division.
• Luxury (about ₹6,000 and up): limited near Thenmala; for more choice, stay in Kollam or plan via the Thiruvananthapuram travel guide.

Rates are planning estimates and vary by season and demand; confirm current tariffs at the time of booking.

Food to try

Food around Thenmala is everyday Kerala cooking, served in the zone restaurants, the leisure-zone shop court and small eateries in town. Options on site can be limited, so carry water and snacks for a long day out.

• Kerala sadya (a vegetarian rice meal with many side dishes served on a banana leaf), best around festivals.
• Puttu and kadala (steamed rice-flour cylinders with black-chickpea curry), a common breakfast.
• Appam with stew (lacy fermented rice pancakes with a mild coconut-milk curry).
• Fish curry and rice (regional fish in a tangy coconut or kokum gravy), widely available towards Kollam.
• Local forest-produce items such as honey and spices, sold at the leisure-zone shop court.

Budget breakdown

A day trip to Thenmala is inexpensive; the main cost is transport and any guided trek. The estimate below is per person for a two-day, one-night trip from Kollam or Thiruvananthapuram, as of October 2026, assuming two people sharing and public transport plus some taxi use.

These are planning estimates, not quoted rates. Confirm fees, tariffs and fares with the operators before you travel.

Fees, timings, permits and rules

Entry to the Thenmala eco-tourism zones is through tickets bought at the eco-tourism centre, with the leisure zone commonly listed as open 9 am–5 pm. Published entry and activity fees differ across sources and change often, so treat all figures here as indicative and reconfirm with TEPS on site.

As an indicative guide from recent reporting, general entry has been reported in the region of ₹50–70 per person, with the adventure zone and boat rides charged separately; the musical fountain and some activities carry their own tickets. These are planning estimates for October 2026, not official quotes.

• Timings: leisure zone about 9 am–5 pm; the musical fountain runs only in the evening/night and reportedly not on Mondays — confirm locally.
• Permits: no special entry permit is needed for the eco-tourism zones. Shenduruney treks are sold as guided packages through the Wildlife Division, which is the effective permission step.
• Eco rules: this is a forest-edge sanctuary — follow plastic restrictions, carry out your litter, do not feed or disturb animals, and stay with your guide on trails.
• Photography/drones: personal photography is fine in the zones; do not fly drones over the sanctuary or dam without written forest-department permission.

Practical tips

Thenmala is an easy, family-friendly outing, but it is a forest-edge site, so plan for weather and limited services. A few practical notes make the day smoother.

• Connectivity and cash: mobile coverage is patchy in the forest. Carry some cash, as UPI and card acceptance can be unreliable at small counters; ATMs are easier in Punalur and Kollam.
• Health and safety: the nearest larger hospitals are in Punalur and Kollam. Carry basic medicines, water and sunscreen; watch footing on wet walkways and bridges.
• Solo and women travellers: the main zones are busy and well-staffed in season; for treks, stay with the assigned guides and avoid remote trails alone.
• Packing by season: August–October, carry rain protection and quick-dry clothing; November–March, light layers; all year, sturdy shoes and insect repellent for trails.
• Timing: arrive early to fit boating, zones and the evening fountain into one day.

Nearby places

Thenmala pairs well with waterfalls, the sanctuary and the coast at Kollam. The table lists the main options with approximate distances.

Frequently asked questions

Where is Thenmala and which district is it in?

Thenmala is in Kollam district, Kerala, on the district’s eastern edge near the Tamil Nadu border. It lies on the Kollam–Shencottah road, about 66 km east of Kollam and about 72 km from Thiruvananthapuram, at the edge of the Shenduruney forest around the Thenmala (Parappar) dam.

Why is Thenmala called India’s first planned eco-tourism destination?

Thenmala is described by the Government of Kerala and the Thenmala Ecotourism Promotion Society (TEPS) as India’s first planned eco-tourism destination because it was deliberately designed from 2001 as a zoned eco-tourism project — culture, leisure and adventure areas — rather than growing up around an existing attraction.

What is the best time to visit Thenmala?

The best time to visit Thenmala is August to March, after the monsoon fills the streams and before the summer heat. November to February is driest and most comfortable, while August to October brings the fullest waterfalls and greenest forest. April to July is hot and then very wet.

What is there to do at Thenmala?

At Thenmala you can take a one-hour boat ride on the Parappar reservoir, walk the leisure-zone boardwalks and suspension bridge, watch the Nature’s Dance musical fountain in the evening, try adventure-zone rope and net activities, and visit the Butterfly Park, deer rehabilitation centre and sculpture garden.

Do I need a permit to trek in Shenduruney from Thenmala?

No separate government permit is required, but Shenduruney treks must be booked as guided packages through the Shendurney Wildlife Division at Thenmala. Small groups go with forest guides and a guard. Programmes and fees, from about ₹400 to ₹2,000 per person as of October 2026, change, so reconfirm with the Wildlife Warden.

How do I reach Thenmala by train or air?

By rail, Thenmala has its own station on the Kollam–Sengottai line, while Kollam Junction handles most long-distance trains. By air, the nearest airport is Thiruvananthapuram International, about 72 km away, from where taxis and buses run towards Thenmala on the Kollam–Shencottah road.

Last updated and sources

Thenmala suits families and nature-minded travellers wanting an easy forest-edge outing with light adventure. Visit between August and March, start early, and reconfirm fees and the fountain schedule on site.

Last updated: 17 October 2026. Fees, timings and permits change — reconfirm with official sources before you travel.

Sources: Thenmala Grama Panchayat, “Thenmala Ecotourism” (thenmalapanchayat.lsgkerala.gov.in); Kerala Tourism, Thenmala–Shenduruney trekking programmes (keralatourism.org); Wikipedia, “Thenmala” (en.wikipedia.org), “Shendurney Wildlife Sanctuary” (en.wikipedia.org) and “Palaruvi Falls” (en.wikipedia.org); Outlook Traveller, Thenmala getaway guide (outlookindia.com); Onmanorama travel reports on Thenmala (onmanorama.com); climate normals for Kollam. Accessed September 2026.