ABOVE: Tadlac Lake in Los Baños, Laguna, is surrounded by greenery and nearby homes, with a lakeside resort along its shore and Mount Makiling in the background.
Tucked into Barangay Tadlac in Los Baños, Alligator Lake stands apart from Laguna’s more bustling attractions. While many flock to the town’s famed hot springs, this volcanic crater lake offers a quiet retreat where travelers can pause, listen, and photograph the calm waters stretching beneath the slopes of Mount Makiling. Its modest size — approximately 22.7 hectares, 650 meters long and 503 meters wide — belies the depth of its story, both geologically and culturally.
ABOVE: Tadlac Lake in Los Baños, Laguna, is surrounded by greenery and nearby homes, with a lakeside resort along its shore and Mount Makiling in the background.
ABOVE: Tadlac Lake in Los Baños, Laguna, is surrounded by greenery and nearby homes, with a lakeside resort along its shore and Mount Makiling in the background.
Despite its imposing name, there have never been alligators in the area. Historical tales speak of crocodiles that once roamed these waters, inspiring the lake’s moniker. Locals also refer to it as Crocodile Lake or even Enchanted Lake, names that hint at folklore and mystery woven into the town’s identity. Photographers find the lake especially compelling for capturing reflections, subtle ripples, and the light of early mornings or late afternoons.
One of Alligator Lake’s most fascinating features is hidden below the surface. During the cooler months — usually December through February — the lake experiences langal, a natural overturn where trapped carbon dioxide rises and oxygen levels shift. Historically, this has led to periodic fish kills, a reminder of the delicate balance of crater ecosystems. The lake was once oligotrophic, with remarkably clear waters that could almost be consumed directly. After aquaculture booms in the late 20th century disrupted this balance, the lake slowly recovered following a major fish kill in 1999.
Visitors to Alligator Lake are treated to more than a geological curiosity. The eastern shore hosts a small park where one can picnic, photograph, or simply absorb the gentle sounds of birds and wind across the water. Hikers, environmental students, and artists often gather here to sketch or study the lake’s ecology. For those coming from Metro Manila, it’s a 1.5- to 2-hour drive, with a modest environmental fee supporting local upkeep. While swimming is discouraged due to depth and safety, the lake’s natural ambiance remains its main attraction.
ABOVE: A person is fishing at Tadlac Lake (also known as Alligator Lake) in Laguna, holding a rod and reel, with a hillside behind them and buildings along the shore.
ABOVE: A person is fishing at Tadlac Lake (also known as Alligator Lake) in Laguna, holding a rod and reel, with a hillside behind them and buildings along the shore.
ABOVE: Tadlac Lake (Alligator Lake) in Los Baños, Laguna, Philippines, is a deep blue lake bordered by green hills, residential areas, and aquaculture facilities.
ABOVE: Tadlac Lake (Alligator Lake) in Los Baños, Laguna, Philippines, is a deep blue lake bordered by green hills, residential areas, and aquaculture facilities.
Although Alligator Lake itself is low-key, nearby resorts such as Laresio Lakeside Resort & Spa provide water-based activities, including kayaking, paddleboarding, cliff jumping, and ziplines. These offerings create a balance of adventure and reflection, allowing visitors to enjoy Laguna’s nature without compromising the lake’s tranquil character.
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Alligator Lake captivates because it is authentically itself — a place where geology, folklore, and quiet human activity intersect. For travelers and photographers, it offers a different lens on Laguna: one less crowded, yet rich with story, reflection, and environmental intrigue. By highlighting understated beauty and ecological rhythms, the lake reminds visitors that some of the province’s most compelling experiences are those found off the beaten path.








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