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Upstream vs downstream

Upstream

Upstream direction is the end of the waterway from where the flow of water originates.

Downstream

Where the flow ends, at the opposite end of the waterway.

Upstream - Downstream

For exemple, from Kingston to Toronto you are heading upstream, the water emptying from a river back into the ocean. Kingston to Cornwall is downstream.

When going in the upstream direction:

keep all the red buoys on the starboard side and the green buoys on port side.

Upstream green colored buoy = Port side buoy

Upstream red colored buoy =  Starboard side buoy

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