I can't really see that any bus would get you much closer to that bit of parkland than you already are at Charlies! The closest major intersection is Winthrop and Aberdare. (I'm not sure what you mean by corner of Winthrop and Thomas - they're the same road.)

I don't suppose you can afford to grab a cab, if you can't walk it? Charlies to Synergy should be less than a five minute drive - and that's only because cars have to go the long way round. As the crow flies, it's well under half a km.

Or is it in a different part of the park, and someone mistyped somewhere?