Lesser Slave Lake Provincial Park

Alberta Parks


COVID-19 Updates: Taking steps to return to normal.

  • Closure - Lily Lake Trail closed for maintenance

    Effective:  September 26, 2022

      Please be advised that the Lily Lake Trail at Lesser Slave Lake Provincial Park is closed for trail maintenance effective Monday, September 26. 

  • Water Advisory - Boil water advisory

    Effective:  September 19, 2022

      Due to seasonal service changes, we have a boil water advisory in place until further notice. Water is safe for washing and cooking, but we recommend that you do not drink it if you have not boiled it first. Advisory is in effect for the following locations:
      • Marten River Campground
      • Marten River Group Use
      • Lily Creek Group Use

      For more information, visit the Alberta Health Services FAQ webpage on How to use water safely during a boil water advisory.

  • Closure - The Freighter Lakeshore / Trans Canada Trail from Boreal Centre for Bird Conservation to Marten River Campground

    Effective:  September 13, 2022

      The portion of the Freighter Lakeshore / Trans Canada Trail from the Boreal Centre for Bird Conservation to Marten River Campground is closed for maintenance until further notice.

  • Blue-Green Algae - Lesser Slave Lake

    Effective:  August 26, 2022

      General precautions
      • Avoid all contact with blue green algae blooms. If contact occurs, wash with tap water ASAP.
      • Do not swim or wade in any areas where blue-green algae is visable.
      • Do not allow your pets to swim or wade in these areas or to eat fish or fish trimmings from the lake.
      • Consider limiting human consumption of fish from the lake.

      For detailed information, go to Alberta Health Services Blue Green Algae Health Advisories. Please refer to the specific advisory for this lake.

      Blue-green algae bloom advisories are issued and rescinded by Alberta Health Services. Typically, advisories are lifted in late autumn, when water temperatures are so cool that blue green algae growth is no longer supported.

    • Boating - Marten River

      Effective:  July 6, 2022

        • There is no boat launch in the park except for a hand launch at Marten River campground.
          • Suitable only for boats that you can carry by hand from the parking area (approximately 125m)
        • Larger motor boats can be launched at the MD of Lesser Slave Lake River boat launch, south of the park at Lesser Slave River.
          • There is no charge for boat launching and parking is available.

    • Closure - The Nest is closed until further notice

      Effective:  June 8, 2022

        The Nest is closed. No re-opening date has been set at this time.

      Affected Areas
    • Water Advisory - Water unavailable at Devonshire Day Use / Devonshire Short-Stay Campground

      Effective:  June 8, 2022

        • Water is unavailable at Devonshire Day Use Area and Devonshire Short-Stay Campground.
        • RV campers should fill their water tanks prior to arrival at the park if they plan to stay at this campground.

    Safety Links

    Provincial Sources for Advisories