Rideau Lakes
Environmental Foundation

We act together to ensure the health and preservation
of the lakes we all love.

Our Work

RLEF is a registered Canadian charitable foundation supporting on-the-ground environmental projects on Upper, Lower, and Big Rideau Lakes, in Ontario, Canada.  We provide modest grants to support activities that further our mission. We also monitor the regulatory environment and intervene where necessary.

Action Fund

Lake Health


Shoal Marker

Water Safety

Taking a Core Sample

Environmental Research

To develop our understanding of the science that underpins our environmental activities, the RLEF has established a program of small grants to support research projects. We are interested in receiving proposals from scientific researchers working in any discipline that contributes to our knowledge of the flora, fauna, or environment of the Rideau Lakes.

About Us

Our Organization

RLEF is a registered Canadian charity, managed by volunteers. Our overheads are low, and the vast majority of your donation will flow directly to protecting the water and lakes that we love.

Interested in helping out?  

Please contact us.

Give Online

We use Canada Helps – a trusted service provider – to process our donations on-line, ensuring a secure transaction.

As a bonus, you’ll get your tax receipt instantly.

Please Give Generously.

Send Us a Cheque

If you would rather use regular mail, you can send your donation by post to

RLEF, PO Box 93, Portland, Ontario K0G 1V0

We thank you for your support.

Enquire About Funding

RLEF provides modest grants to support activities that further our mission.

The Call for Proposals for Small Grants for Scientific Research on and around the Rideau Lakes – 2021 has now closed.

If you have a project that you think we might be interested in, please contact us.

Support Us

We need your help to do our work.

Your donation to RLEF goes directly towards supporting environmental projects on the lake you love.

Please remember the lake in your tax planning, and give generously.

Donations are processed online via Canada Helps.

From Our Donors

“Thanks for doing good work on our behalf. The Westport situation needs ongoing attention … to protect the Rideau Heritage Waterway from sewage pollution.”

Shoal Marker

“For the Doug Good Shoal Marker fund, in honour of his unswerving commitment to his community.”

“Impressed by the bass study.
Interested in studies on algae.”

Latest News

2022 Research Projects in Review

Understanding the lake is key to looking after it. So the RLEF has once again launched a Call for Participation for research exploring the environment of our lakes. Proposals are in, and the RLEF Boar…

Giving Shares is Tax Efficient

Reduce Tax-Liability with a Donation to a Canadian Charity If your portfolio has done well this year, you might want to consider donating shares directly to your favourite charity. A securities donati…

URLA Shrub and Tree Program Continues

URLA Shrub and Tree Program Continues The Upper Rideau Lake Association (URLA) is pleased to announce the continuation of the tree program in 2022 to support improved lake water quality and our shorel…

Appeal sent to URLA Members

Upper Rideau residents invited to support RLEF It’s that time of year again, as charities reach out to their supporters to ask for your continued support. The annual appeal sent to Upper Rideau Lake A…

Help out with life insurance

Gifts to charitable organizations — like the RLEF — can have financial benefits as well. This article from The Globe outlines some of the tax benefits of naming a charity in your life insurance policy…

RLEF expresses concern about blue-green algae analysis

RLEF has joined with the Big Rideau Lake Association, the Upper Rideau Lake Association, the Otter Lake Landowners Association and the Bass Lake Property Owners Association to express concern about th…

We need your help to do our work.

Your donation enables the Rideau Lakes Environmental Foundation
to continue to protect and preserve the lakes we all love.

Please give generously.