Best lakes in Arenal are characterized by their diverse natural landscapes and significant geological features. The region is dominated by Lake Arenal, Costa Rica's largest lake, which plays a vital role in the country's hydroelectric power generation. Nestled at the base of the Arenal Volcano, the area offers expansive views and a rich natural environment. These lakes provide opportunities for observing wildlife and experiencing the region's unique volcanic topography.
Last updated: July 6, 2026
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Popular around Arenal
It's included in the Arsenal National Park entrance fee and is far less visited. You can see quite a bit of wildlife. The approach via the unpaved road from Arsenal should definitely be avoided with a 2WD, and in my opinion, with a 4WD.
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This green lake contrasts with the rest of the park because it is surrounded by slightly less dense vegetation and a little higher up there are meadows with humped cows.
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Lago Los Patos (Duck Lake) was formed during the eruptions of the volcano.
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Closed for the time being due to many poisonous snakes on the way.
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Bring enough water to the hike taking into account the way back, as the path can be exhausting and it takes longer than 1.5-2 hours (which is what the locals told us).
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Interesting view of the lake. The volcano is not visible from here.
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Bathing opportunity in the volcano crater. The way up to the volcano is very demanding. Sturdy footwear is essential.
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The lakes in Arenal are characterized by diverse natural landscapes. You'll find lush rolling hills, verdant vegetation, and the majestic Arenal Volcano often serving as a dramatic backdrop. Many lakes, like Los Patos Lake, were formed by volcanic activity, showcasing the region's unique geological history. The area also supports over 100 mammal species and various bird species.
Yes, Lake Arenal, the largest lake in Costa Rica, is nestled at the base of the Arenal Volcano, offering breathtaking scenic views. Roadside pullouts along Route 142 provide excellent viewpoints, especially during early morning or late afternoon. While some lakes like Los Patos Lake offer interesting views, the volcano may not be visible from all locations.
The waters of Lake Arenal are home to fish species such as machaca and the well-known rainbow bass, locally called "guapote." The surrounding areas are rich in biodiversity, supporting over 100 mammal species and various bird species, making it a great spot for wildlife observation.
Lake Arenal is a hub for diverse water activities. From November to April, strong, reliable winds make it a world-class destination for windsurfing and kitesurfing. Beyond wind sports, visitors can enjoy wakeboarding, stand-up paddling, kayaking, boat tours, water biking, and fishing for rainbow bass.
Yes, the areas surrounding the lakes offer numerous hiking opportunities. You can find a variety of trails, from easy walks to more challenging routes. For a comprehensive list of options, explore the Hiking in Arenal guide, which includes routes like the easy Arenal Lake Viewpoint loop or the moderate Arenal Volcano – Cherro Chato Tree loop.
For those seeking a challenge, the path to Cerro Chato Crater Lake is demanding and requires sturdy footwear. Similarly, reaching the Lagoon of Chato Volcano is a very demanding ascent, also requiring sturdy footwear. Please note that the path to Cerro Chato Crater Lake is currently closed due to many poisonous snakes.
Yes, there are easier options available. For example, the Hiking in Arenal guide lists routes like the Arenal Hanging Bridge – Morpho Azul Waterfall loop and the Arenal Lake Viewpoint loop, both rated as easy. These provide accessible ways to enjoy the natural beauty without extreme difficulty.
Absolutely. The Arenal region offers excellent cycling opportunities around its lakes. You can find various routes, including scenic loops that provide views of the volcano and the lake. Check out the Cycling in Arenal guide for routes like the Adrenaline Adventure Center – Scenic viewpoint loop or longer, more challenging rides.
For runners, there are several trails available near the lakes. The Running Trails in Arenal guide features routes such as the Mirador Volcán loop or the Running loop from Arenal 1968, offering diverse distances and difficulty levels for a scenic run.
The dry season, generally from December to April, is often considered ideal for visiting, offering clearer skies and more comfortable conditions for outdoor activities. Specifically, from November to April, strong, reliable winds make Lake Arenal a top destination for windsurfers and kitesurfers.
Yes, Cerro Chato Crater Lake is currently closed due to the presence of many poisonous snakes on the way. It's important to heed local warnings and closures for your safety.
Green Lake is an intermediate lake and viewpoint that stands out due to its slightly less dense vegetation compared to other parts of the park. It's surrounded by meadows with humped cows, offering a distinct visual contrast.
Lake Arenal is Costa Rica's largest lake and holds significant importance. Originally a natural lake, it was expanded in 1979 with the Presa Sangregado Dam, making it strategically vital for hydroelectric power generation. It initially generated 70% of the country's electricity and currently contributes around 12-17%.


Still not found your perfect lake in Arenal? Check out the guides of these regions to see even more beautiful places.