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End of Briton Bay

Big Rideau Lake

Portland, Ontario, Canada

Lovely calm bay with Stand U Paddleboarders

Location created by
Diana Carr
  • Lat: 44.7633723
  • Lng: -76.1835248
  • Waterbody Type: Bay
  • Timezone: UTC

Latest photos

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Observation tests summary

Air temperature °C
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24.0 Latest
26.0 Average
Water temperature °C
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20.5 Latest
23.5 Average
Alkalinity mg/L
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80 Latest
70 Average
Hardness mg/L
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150 Latest
100 Average
Dissolved oxygen mg/L
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7.0 Latest
6.8 Average
Chlorine ppm
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4.0 Latest
1.0 Average
Conductivity μS/cm
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203 Latest
201 Average
Secchi depth m
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4.5 Latest
3.4 Average
Water depth m
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8.3 Latest
5.9 Average
pH (0-14)
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7.6 Latest
7.7 Average