We will be there for the Tattoo tomorrow evening and marching under the Clan Chattan banner in the Saturday parade. I try to go to the service at the church beforehand as the pipe band that shows up there is phenomenally good. XMarks often has brunch at the Ploughman's something or other (see other posts?) before the parade. I go to the St.Andrew's Pub afterwards and refuse to take no as an answer - has always got me in.
Suitable wear - you got to be kidding, in NYC? It's all over the map. I wear normal day dress. Going to be colder than usual, and some chance of rain.