The Power of Periwinkle is a global, volunteer-led initiative that shines a light on stomach cancer awareness every November. Since 2017, when My Gut Feeling first launched the campaign, landmarks and community spaces around the world have been illuminated in periwinkle blue—the official color of stomach cancer awareness.

What began with a handful of sites has grown into a worldwide movement, with more than 150 locations now participating across continents. From iconic city skylines to local community hubs, each glowing landmark is a beacon of hope, awareness, and solidarity for everyone impacted by stomach cancer.

This year, on November 30, 2025, cities across the globe will once again come together in light—raising visibility, honoring those affected, and inspiring action in the fight against stomach cancer.

A Call for Photographers!

On November 30, 2025, landmarks around the world will glow in periwinkle blue for The Power of Periwinkle. We’re looking for volunteer photographers to help capture this magical moment and share the light of stomach cancer awareness in their town.

If you live in the city of one of our sites and would like to be part of this inspiring event, please reach out to social@mygutfeeling.ca

The Power of Periwinkle 2025 Sites

  • Calgary, AB - Reconciliation Bridge
    Calgary, AB - Calgary Tower
    Calgary, AB - Telus Spark Science Centre
    Calgary, AB - Lethbridge City Hall
    Calgary, AB - Red Deer City Hall

    Coquitlam, BC - Lafarge Lake and Light Columns
    Burnaby, BC - City Hall
    Parksville, BC - Parksville Civic Centre
    Nanaimo, BC - The Bastion
    Port Moody, BC - City Hall
    Port Coquitlam, BC - City Hall
    Vancouver, BC - City Hall
    Vancouver, BC - BC Place
    Vancouver, BC - Vancouver Convention Centre
    Victoria, BC - Parliament
    Whistler, BC - Fitzsimmons Bridge

    Moncton, NB - Downtown Place & Downing St.

    St. John's, NFLD - City Hall

    Halifax, NS - Province House
    Halifax, NS - City Hall
    Port of Sydney, NS - The Big Fiddle

    Brampton, ON - Brampton Clocktower
    Burlington, On - Burlington Pier
    Guelph, ON - Guelph Market Square
    Kingston, ON - Kingston City Hall Niagara Falls, ON - Niagara Falls
    Ottawa, ON - Ottawa Sign
    Toronto, ON - Toronto Sign
    Vaughan, ON - City Hall

    Charlottetown, PEI - PEI Tower

    Montreal, QC - Montreal Tower, Olympic Park

    Quebec City, QC - Chateau Frontenac

    Regina, SK - City Hall

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The Power of Periwinkle falls on November 30, 2025 - there is still time to register your site!