Yes, then after the tour is done you are free to roam around the grounds and take pictures.
Yes, there are several to choose from. You can book online in advance.
There are many tours. Pick the one(s) you like. Shop early, many sell out quickly. Buying a tour is the only way up the hill, but once the tour is over, roam the grounds as much as you wish before catching the bus back down the hill.
Yes , you need to be there early to get the best tour, or make a reservation. They have two different tours + the night lights tour.
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