Upvote:8
Most likely your Greyhound bus will only make a single stop in Vancouver itself, although it may make stops in nearby suburbs like Coquitlam.
The stop in Vancouver will be on Station Street, directly in front of the station that the Amtrak services leave from.
If you have some time between the two trips you could stroll down and enjoy the views over False Creek, or even hop on a False Creek Ferry for the short trip up-river.