Have you ever been to florida?
I have, quite a few times. I've been to the Florida Keys, Orlando, and Miami, which is the biggest urban area in the state. Very fun. 
I haven't been since I was a young but, the water there is so much better looking than the gulf in texas.
I've never been to the gulf in Texas. I think it's cool that Florida is the only state that borders both the Gulf and the Atlantic Ocean. 
How many people live in miami?
The Miami metro area has about 5.5 million people living there. It's the fourth-largest urban area in the US.
That's a lot of people!  Are there any tourist attractions in maimi?
Well, it's a major center for culture, media, entertainment and the arts, as well as finance and international trade. I don't think there are theme parks there like you'd see in Orlando, but there are other cool things to do, including the beach.