The dress is smart casual, don't overpack and rotate your clothes. Be sure to wear comfortable walking shoes and bring a small travel umbrella or rain jacket with hood. Taste everything on the menu - you will be pleasantly surprised!
The only tip I would give someone is regarding the tour guides in each town. It was unclear if we should tip them or not. I believe they do not work for Avalon and are independent so, we did tip each tour guide after our excursions.
Make sure you like the position of your room.
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