The directions above are for Downtown Miami -
If you want to go to the Beach, you take 95 south to 395 Miami Beach exit and drive eastbound til you fall into the ocean...
Not really. PRINT THESE maps:
As you near the Beach, the highway runs over a few bridges past the cruise port. Stay in the right lane to see it all and after the last bridge (MacArthur Causeway), you are officially on the beach. Drive to the end of 5th Street and turn left on Ocean to cruise Ocean Drive.
You can leave the car at one of the parking garages on the maps linked above and take a 25 cent circle shuttle (also on the link above) or you can continue driving northbound to park at 17th west of Washington. This is the closest lot to the DUCK office at Lincoln and Washington.
Take the tour and afterward, have a stroll on Lincoln Road and lunch at the ICE BOX on Michigan just off Lincoln (again, there is a map above). Watch the game at Lucky Strike just next door to the ICE BOX or on the mall at Finegan's Bar. Lucky Strike has a Happy Hour weeknights - $4 well drinks and house wines, $3 Bud Light drafts, $5 Absolut flavors, and $5 Sauza Tres Generaciones