NW200 - recommendations

[abw280]

I'm planning a trip from Glasgow across the water to watch the main races on Sat 16th (one day trip on the ferry over from Cairnryan to Larne). I'll be travelling by bike - looking for recommendations as to where in the circuit to watch from. What's the traffic like, can I just ride up and park/watch the action, or is it more complicated than that? Thanks in advance, Alan