Dress code: follow the event's own dress code, which is usually stricter than ours and varies by enclosure. Ascot, Cheltenham and the other courses publish theirs online; check it before you travel, as you may be refused entry if you don't meet it.
What's included: your journey page says whether entry tickets or an enclosure badge are included. If they aren't listed, they aren't included. Transfers between the station and the course, where provided, are shown on the itinerary and are shared with other Northern Belle passengers.