I have several questions (a) How much strenuous walking is involved in excursions?(b) From other questions I assume the 'package' does not start until you reach the first hotel in Beijing? (c)Does 'luxury' include a balcony? (d) Can anyone advise whether it is better to fly from the West or East coast. I live near Atlanta and would prefer to perhaps break my journey to avoid 20 hours travel time. Thankyou