Thanks,all, I'm all set for seats. Next question:

What to do with 4.5 hours between these flights in the morning?

Time for a dash into town? Any suggested itineraries for perhaps a whistlestop tour?

Must include a couple of open air moments - perhaps in the harbour and on the beach for 20 minutes each, just to savour the fresh air.

I guess being rush hour complicates matters somewhat...