We were there late morning. Waited about 1/2 hour. It wasn't a bad wait and well worth it to us Pyrates!

A couple of hours at the most.

We paid 15.00 per adult. I believe under age 15 is free if with a paying adult. You can visit the National Park Service and search for the Castillo and it provides pertinent information including entrance fees.

No, you can not, unfortunately. Early morning is the best time. Well worth the wait!

All the areas inside were open, but they were not doing any cannon firings or weapons demonstration.

Yes but if you plan to go don’t go in the afternoon on the weekend. Got in line at 130 and stood in line for an hour due to crowd limit.

Sorry don't know.

It is a self guided tour. I do remember staff being there to answer questions but I'm not sure of their hours.

Sure if you just want to see the outside of a fort. The grounds are nice and it is on the water which can be seen from other areas. I would have been disappointed not to see the inside, the rooms, the history and information posted. The parking lot is right there, decent size but fills up fast and you must pay for parking which is true throughout St. Augustine.

$15