Lisi Lake

Lisi Lake, or Lisis Tba (ლისის ტბა), is a popular natural lake located in the northwestern part of Tbilisi, Georgia. Situated in the Kura River valley depression at a moderate elevation, it offers a distinct recreational experience compared to other spots in the city. Larger than Turtle Lake but significantly smaller than the Tbilisi Sea reservoir, Lisi Lake is known for its relatively tranquil atmosphere and the unique, somewhat arid, rocky landscape surrounding it, featuring specific steppe-like vegetation. This environment makes it an important location for birdwatching within the city limits, especially during migration seasons. The lake area is well-equipped for leisure activities, boasting a popular path around its perimeter for walking, jogging, and cycling, along with cafes and recreational fishing spots. In recent years, the vicinity has seen substantial development, including modern residential complexes and improved infrastructure, aiming to blend urban living with nature. Despite these changes, Lisi Lake remains a cherished green space for Tbilisi residents seeking relaxation and outdoor activities.

Identification and Location

• Name: Lisi Lake (English), Lisis Tba / ლისის ტბა (Georgian).
• Location:
  • Country: Georgia
  • City: Tbilisi
  • Location specifics: Northwest part of the city, in the valley between Saburtalo and Digomi districts.
  • Coordinates: Approximately 41.743∘N, 44.736∘E.
  • Relationship to other bodies of water: Located in the Kura River valley depression but not directly connected to the main river. Fed by smaller inflows and groundwater.

Physical Characteristics

• Surface Area: Approximately 0.47 square kilometers (47 hectares).
• Maximum Depth: Relatively shallow, around 4 meters.
• Average Depth: Shallow, approximately 2.6 meters.
• Elevation: Approximately 624 meters above sea level.
• Shoreline Length: Features a perimeter path of about 3 kilometers.
• Water Source(s): Fed by precipitation, groundwater, and small streams or channels. Water levels can fluctuate, especially in dry periods.
• Outlet(s): Likely managed or natural seepage.
• Water Type: Freshwater, sometimes described as slightly brackish or mineralized (historically linked to sulphur springs).
• Basin Geology: Likely formed by tectonic activity or possibly landslide processes within the broader Kura River valley geology.

Ecological Information

• Flora: The surrounding landscape features rocky slopes with steppe vegetation, shrubs, and artificially planted trees. Marsh grass (“Lisi” in some interpretations) historically grew here. Wildflowers, including poppies, can be abundant in spring.
• Fauna: Known as an important habitat for various bird species, including waterfowl (ducks, herons) and sometimes birds of prey; it serves as a stopover point during migration. Fish populations (e.g., carp, bream) support recreational fishing. Reptiles (like turtles) and amphibians are present, along with small mammals like foxes and hares in the surrounding less developed areas.
• Trophic Level: Likely ranges from mesotrophic to eutrophic, influenced by natural inputs, runoff from surrounding areas, and recreational activities.
• Water Clarity: Variable depending on season, weather, and activity levels.
• Water Temperature: Fluctuates seasonally, reaching temperatures suitable for swimming (around 23-28°C) in peak summer.
• Unique Ecological Features: Notable as an urban birdwatching location. The surrounding semi-arid landscape contrasts with other Tbilisi parks.
• Conservation Status: Managed as a recreational zone. Development projects often include landscaping and green space preservation components.

Human Interaction and Significance

• Historical Significance: Used locally for centuries. Development as a major recreational zone began primarily in the 20th century. Historically associated with nearby natural sulphur springs and therapeutic muds.
• Current Uses: Very popular for recreation: walking, jogging, cycling (bike rentals available), recreational fishing, picnicking, relaxing in cafes. Swimming is possible in summer. Hosts occasional events (e.g., Tbilisi Open Air festival has been held nearby). Subject to large-scale residential and recreational development projects (“Lisi Green Town”, “Lisi Topograph”, etc.).
• Environmental Issues: Potential water quality concerns due to urban runoff and recreational pressure. Water level fluctuations can be an issue. Managing the impact of large-scale development on the local ecosystem is ongoing. Past issues with maintaining water sources have occurred.
• Management and Conservation Efforts: Managed by Tbilisi city authorities and potentially private entities involved in development projects. Efforts include path maintenance, facility management, and environmental monitoring associated with development.
• Local Communities: Highly valued by Tbilisi residents as a large, accessible green space offering diverse recreational opportunities year-round.

Interesting or Unique Facts

• The surrounding landscape is distinctively rocky and more arid compared to the forested areas around Turtle Lake or Mtatsminda Park.
• It’s considered one of the key birdwatching spots within Tbilisi, particularly during migration periods.
• Historically, the area was known for therapeutic sulphur springs, and a modern sulphur bath facility exists near the lake.
• The lake and its surroundings are the focus of significant ongoing urban development projects creating new residential areas and amenities.