The Miami boat show primarily takes place in 4 locations. ......
First is the Miami Beach Convention Center (MBCC) This is in the northern end of "South Beach". South Beach roughly comprises the area south of 23rd St. in Miami Beach. The MBCC will have many vendor booths, and boating electronics and accessories, etc. They usually also have some of the smaller boats.
There are bigger boats / yachts at the in-water displays at 2 locations. One is the yacht and brokerage (used) show that takes place along Indian Creek in the mid-Beach area of Miami Beach. This is along Collins Avenue and a couple miles north of the MBCC.
The other in-water location is at Sea Isle Marina on the Miami mainland, just to the north side of the west end of the Venetian Causeway. That will have mostly new boats. In addition to the large "yachts", it will have performance boats along "Thunder Row".
If you are looking for sail boats, they are at the "Strictly Sail" show at Miamarina at Bayside. Like Sea Isle, this is also on the Miami mainland, rather than Miami Beach. Miamarina is south of the Sea Isle Marina, and below the MacArthur Causeway and Dodge Island/ Cruise port causeway.
Both Sea Isle and Miamarina marinas also have some small marine vendor booth displays, in addition to the MBCC.
The Miamarina / Bayside area has few restaurants right there. If you prefer to eat in South Beach/Miami Beach, they have casual to very fancy. What type of eating are you looking for?
The best way to get around will be by their shuttle busses and the water taxis that will be running. There is parking on the mainland at the Adrienne Arscht Center, which should have plenty of parking. From there, you can pick up shuttle bus rides.
It's a great show for both experienced and new boaters. They have lots of learning seminars, and even some in-water docking / boat handling lessons.
You can easily spend a few days at the show.
What types of boating are you interested in? Even if you have no intention of buying anything (and most attendees don't), it's still a great, fun event.
Enjoy!
Glenn