Lake Ontario Park - Cobble Beach

Lake Ontario Park is one of Kingston's largest waterfront spaces. The City completed its major re-envisioning project on June 23, 2013. Public surveys found that a beach is one of the most important features that should be in a revitalized Lake Ontario Park.

Features include:
Waterfront Terrace Lookout and public fishing, accessible washrooms and waterfront walkway, boat launch, beach volley ball court, a refurbished Pavilion, new splash pad, new play equipment and waterfront sand play area.

Get directions to this beach

WATER QUALITY

Passed water quality tests at least 95% of the time
Historical Status
This status is based on the latest sample, taken on August 27th, 2019. Lake Ontario Waterkeeper updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at

For water quality icon legend, click:

CURRENT WEATHER

-16°C

Mostly clear

View this beach on Great Lakes Guide

Report Pollution

MONITORING FREQUENCY

SOURCE INFORMATION

Water at all sites is sampled for E. coli and Total coliform at all sites.

KFL&A Public Health issues beach advisories when the geometric mean concentration of at least five samples is at least 200 E. coli / 100 mL of water or when a single sample is at least 400 E. coli / 100 mL of water.

This guideline comes from Canada’s Guidelines for Canadian Recreational Water Quality (2012). It is applied to beaches in Ontario in accordance with Ontario’s Recreational Water Protocol, 2018.

Prior to 2018 beaches in Ontario were posted when the geometric mean of 5 samples collected within a 30-day period exceeded 100 E. coli / 100 mL of water.

Water samples are collected weekly. Results are posted to Swim Guide as soon as lab results are available. They are also available at https://www.kflaph.ca/en/healthy-living/public-beach-listings.aspx.

In Swim Guide, a beach is marked Green when the geometric mean of at least 5 samples is below 200 E.coli / 100 mL water and each individual sample concentration is below 400 E.coli/100 mL.

A beach is marked Red when the results are equal to or above a geometric mean of 200 E.coli / 100 mL water and/or 400 E.coli / 100 mL.

A beach is marked Grey when there are no current results or there is no available information.

DISCLAIMER:

Historical data from 2017 and prior reflect the previous Ontario standard of a geometric mean of ≤ 100 E. coli /100 mL.

Historical data from 2018 onward reflect the new Ontario Operational Approaches for Recreational Water Guideline, 2018: Geometric mean concentration ≤ 200 E. coli/ 100 mL and single-sample maximum concentration of ≤ 400 E. coli /100 mL.

The City of Kingston has combined sewers monitored by Utilities Kingston.
Try to avoid contact with the water for 48 hours after a rainfall event.

To view Utilities Kingston’s live combined sewer overflow monitoring data, visit: https://utilitieskingston.com/Wastewater/SewerOverflow/Map.

WATER QUALITY GRAPH