The tickets are timed. You can't get into any of the buildings until you get into the church first. Then you have access to everything else. It wasn't that busy when we were there.

The space is not suggesting for any parking nearby

Service dogs only I believe

Everything we did at the Alamo was free. No admission fees. The grounds are amazing. Not sure about the riverboats, if you don’t want the tour, just get the all day pass to ride the boat like a taxi and get on and off when you want. It’s cheaper and they still tell you information and history on the various buildings as you ride.

There's no entry fee as far as I know. There are tours that promise to get you in quicker. We waited about fifteen minutes in line to get in. Just as we were about to enter, a tour group were pushed in front of us so they clearly get priority for the fee they pay. I'm not sure what a tour adds since there's not a lot inside the Alamo. I would guess there are some pretty good podcast guides online that would do a decent job of explaining what you're seeing. But inside the church is so packed I found it hard to get a feel for the place, together with guards shouting "no photos" at frequent intervals (not that it stopped them from doing the ritual get your photo at the Alamo outside). For a site that is clearly important in Texan history I found it lacking in reverance, once you're in the compound it's mostly concessions and shops hawking nonsense. Don't miss the sculpture courtyard which does pay respects to the more famous ones who died.

The lines are not that long, and they move fast. March is still very pleasant weather wise so don't worry, maybe some showers. Like in every major attraction the sooner you get there the better. Plan to have lunch at the River Walk right across the street Weekends are always more crowded

No it is free and amazing visit, be sure you will get a lot of brand news about this history fact.

Between 90 minutes and two hours.

Hi mate didnt watch or know about it. Plenty of info and time lines inside, entry is free.