Plizio Visual Lab

Great Bear Lake

Plizio editorial teamUpdated: Jun 2026Data Sources

Lake

Weather…

Great Bear Lake is the largest lake situated entirely within Canada and the eighth-largest lake in the world by surface area. Located in the Northwest Territories on the Arctic Circle, it spans approximately 31,153 square kilometers and reaches a maximum depth of 446 meters. The lake is distinguished by its exceptional water clarity and remains covered in ice for the majority of the year, typically from late autumn until July. Historically, it has been the ancestral home of the Sahtu Dene people, whose primary community, Délı̨nę, is located on its western shore. In 2016, UNESCO designated the lake and its surrounding watershed as the Tsá Tué International Biosphere Reserve, acknowledging its pristine ecological state and cultural importance. The lake's basin lies on the Pre-Cambrian Canadian Shield, characterized by ancient rock formations and a diverse subarctic environment that supports various fish species and migratory birds.

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	-31	-29	-22	-9	4	13	16	13	5	-9	-24	-29
Rain mm	19	13	16	26	41	57	65	65	45	33	24	19

📋 Practical info

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Getting there

This gigantic inland lake is extremely remote and is mostly accessed by small charter planes flying from cities like Yellowknife. Road access is practically non-existent, except during the severe winter months via temporary and risky ice roads.

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Best season

For intrepid anglers and nature lovers, the short Arctic summer from July to August opens up the best window of opportunity. During these weeks the ice melts, but the nights remain quite cool and the mosquitoes can sometimes be extremely demanding.

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Terrain & paths

The shoreline is fringed by barren, rocky foothills of the Canadian Shield and low-lying coniferous forests typical of the taiga. The deep blue water is known for its exceptional clarity, but often hides treacherously shallow rock reefs near the shore.

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What to bring

Since the water remains ice-cold even in mid-summer, appropriate thermal safety clothing is absolutely essential during boat trips. Anyone staying overnight in the wilderness must rely on the strongest insect repellents and highly storm-proof tents.

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Parking

Regular road infrastructure is almost completely absent on the shores of this massive body of water, so conventional parking is not an issue. Visitors mostly leave their vehicles behind in the southern cities before transferring to small floatplanes.

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Safety

The complete isolation forgives no mistakes; medical help is extremely difficult and delayed to obtain in a real emergency. Rapidly approaching storms can quickly transform the water into life-threatening, massive waves that severely threaten boats.

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Time needed

Anyone who takes on the enormous costs and considerable effort of the journey usually plans a stay of at least one full week. Guided fishing expeditions from the few scattered local lodges are typically designed exactly for such extended periods.