Kissimmee ,Orlando Daytona Beach area,and Disney World AREA

I,m going to be in the Orlando area,and maybe a few other places,and would like to get out and do some detecting.  I was in Daytona Beach back in 2004 and did some hunting

So my question is were are some good places to go,in the areas mention above,in the title   what are the rules in the Orlando area for parks, or any of the other areas. I'm going to a ham Radio convention at the fair grounds in Orlando. Is it ok in the fair grounds?

Midnightcaller