Late Sept sailing is not Labor Day??? I have sailed this week twice- at a deep bargain and on a second yearly trip. It is far better earlier. Anyway, you need to be prepared for less than ideal conditions, expect rain, temp 40-60, dusk by 7pm, so plan tours very carefully. Salmon runs are over in some areas. Take layers, rain gear, 2 pair of walking shoes. Best is to look over a shore excursion list and narrow down your interests- then repost. Some tours will not be suitable possibly that late. Keep checking rates and expect to pay less than earlier trips, I have seen this week in the $500 range. Balconies are cold so if you get one, be certain to take you warm clothes and don't expect to eat breakfast out there.