We spent from 10:30 until 17:00 here and signed up for all the visits, which included the state rooms, royal private apartments, crown treasury and armoury, oriental art, lost Wawel, dragon's den, sandomierska tower and best of all Leonardo da Vinci's "Lady with an Ermine" and what's more for a few minutes we had her all to ourselves!
Compare the price to the Tower of London! It was an absolutely marvellous and really interesting day out and even a quick lunch at the in house bar was reasonable two waters and two very tasty sandwiches, rolls really, at about £4.
You can't take in rucksacks but there is left luggage and I must admit I left my there with my iPad inside it, and I've still got it!
If you go to the dragon's den you end up outside the castle and have to walk back up the hill after negating all the touts selling tickets for river cruises.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC