You can walk from the Seward Train Station to the Dock (since we did it with luggage (the other way around) I know it would be cake without(except it sounds like you might have a stroller ;) )). The area between the Station and the dock is all industrial (as I recall). The town of Seward starts about 2 blocks in another direction. You could walk into town but (depending on when ship leaves) you might be better off buying in Anchorage. I'm betting the price might be better, too :) .
Greg

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