If Jogjakarta is the soul of Java, Lake Toba in North Sumatra is the crown jewel of the Indonesian wilderness. Formed by a cataclysmic super-volcanic eruption 74,000 years ago—the largest in Earth’s history—this lake is so vast it feels like a freshwater ocean.
Here is why every traveler needs to experience the colossal beauty of Lake Toba:
1. The Mind-Blowing Scale of a Supervolcano
Lake Toba isn’t just a lake; it’s a giant volcanic caldera. It is the largest volcanic lake in the world, stretching over 100 kilometers long. The eruption that created it was so powerful it triggered a global “volcanic winter.” Standing on the shore today, the sheer scale of the surrounding 500-meter-high cliffs makes you feel like you’ve stepped into a prehistoric world.
2. An Island the Size of Singapore
In the center of the lake lies Samosir Island, a massive landmass that is actually an island within an island. It’s nearly the size of Singapore! Samosir is the heart of the Batak Toba culture. Staying here offers a surreal experience where you are surrounded by water on all sides, yet you are thousands of feet up in the mountains.
3. The Captivating Culture of the Batak People
The Batak people are famous for their vibrant music, incredible hospitality, and unique architecture.
- Batak Houses (Jabu): You’ll see traditional houses with massive, boat-shaped roofs that curve toward the sky.
- The Sigale-Gale Puppet: In the village of Tomok, you can watch a life-sized wooden puppet “dance” to traditional music—a ritual originally used to honor the spirits of the deceased.
4. Dramatic Waterfalls and Hidden Lakes
The geography around Toba is nothing short of theatrical.
- Sipiso-Piso Waterfall: One of Indonesia’s tallest waterfalls, it drops a staggering 120 meters into the lake from a mountain plateau.
- Lake Sidihoni: On Samosir Island, there is a “lake on an island on a lake.” It’s a quiet, misty spot that feels completely untouched by the modern world.

5. The “Stone Chair” Court of Ancient Kings
In the village of Ambarita, you can find the ancient stone chairs where Batak kings once held trials. This site offers a fascinating (and slightly chilling) glimpse into the past, as it was once the location for tribal executions and ritualistic justice over 300 years ago.
6. Adrenaline and Serenity on the Water
Because the lake is so massive, the water is often as calm as glass.
- Kayaking: Renting a kayak allows you to explore the jagged shoreline at your own pace, far away from any noise.
- Swimming in “Holy” Water: The water is surprisingly cool and refreshing. Locals believe the lake has healing properties, and there are even natural hot springs at the foot of the Pusuk Buhit mountain where you can soak.
7. An Escapist’s Climate
Located 900 meters above sea level, Lake Toba offers a crisp, cool climate that is a rare relief from the tropical heat of the rest of Indonesia. The air is fresh, scented by pine trees, and the mornings are often draped in a beautiful, ethereal mist that makes for world-class photography.
Quick Tips for Your Visit:
- How to Get There: You can fly into Silangit International Airport (DTB), which is much closer to the lake than the 6-hour drive from Medan.
- Where to Stay: Tuktuk Siadong on Samosir Island is the main hub for foreign travelers, filled with cozy lakeside guesthouses.
- Must-Try: Taste Mie Gomak (the “Spaghetti of the Batak”) and fresh Grilled Tilapia caught straight from the lake.
