Remember, the Regatta is totally at PDP now. So there will not be any traffic in Simpson Bay from the regatta, although of course there can be bad traffic in Simpson Bay most any time! That early in the day, I doubt you will see any issues directly from Regatta traffic, even immediately by PDP. I would probably head to Orient through Orleans, as compared to going over the Causeway, as it's possible (although unlikely that early in the day) that there could be traffic around the roundabout at the end of the Causeway. I doubt that regatta will be much of an issue for you regardless.
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