Miami Beach's main drag is Collins Avenue, a beachfront road that has been called "Millionaire's Row" on account of its high-end properties. Other major roads include Lincoln Road and Ocean Drive for shopping, and 41st Street, Mid Beach's main road. Renting a car is probably the most convenient option, especially for getting around the greater Miami area. Keep in mind that Miami Beach is very crowded, and Miami-area drivers are notorious. Be particularly careful around South Beach, where most of the partying happens and drunk and/or high drivers are a possibility.
Whether you are simply studying, touring the city of Miami Beach or living it up on the night life scene with friends, Beyond Car Rental offers a wide range of the most updated car rentals from full size sedans to SUVs, mini-vans, mustang convertibles and even luxury car rentals. Car rental delivery is also available.
Although taxis can be expensive, they are available pretty much whenever you need them. Ridesharing services like Uber and Lyft have become very popular in Miami. Even if you don't have cell phone service in the US, you can use your phone app to hail one through Wi-Fi. You don't have to have an internet connection for the entire trip.
The main routes you need to know are the 120, which starts in Downtown Miami, crosses the MacArthur Causeway, and runs up Collins Avenue all the way to North Beach; the 115/117, which runs in a loop around the center of the island west of Collins; and the 150, which runs from the airport to South Beach. A good choice is the South Beach Local, which operates in a loop from 19th St to the southern point of Miami Beach for only $2.25.
By golf cart
South Beach Decocarts it is the newest addition with stylish Eco-friendly golf cart rentals. Hourly, daily and weekly rentals are available. Each Decocart can fit 4 adults (great for groups) and requires a driver's license. It can hold shopping bags and other items you won't be able to transport with a bike or scooter. Decocarts also offers trendy E-Bikes that don't require a license.
Miami Beach has become more bicycle friendly in recent years with the addition of new bike paths and bike lanes, although not as comprehensive as other major cities. Notable additions to the biking and pedestrian infrastructure include the paved "Beach Walk" which runs parallel to Ocean Drive and Collins Avenue and is directly on the beach, plus the new South Point Park along the bay. In Miami Beach and South Beach, riding is permitted on sidewalks, which luckily are wider than average. That said, it doesn't stop many people from trying to utilize bicycles (including locals) to get around town. Pedestrians and drivers tend to be tolerant of bikers and willing to share the right of way. However, be prepared to slow down and go on foot, particularly on the congested streets closer to the beach. Absent of heavy auto traffic, South Beach is biking bliss.
There are better attempts at bike-friendliness in the South Beach district, where most of the bike rental shops are located. Lummus Park and Lincoln Road Mall are great for bikers, and have plenty of bike racks throughout; meanwhile, if you are trying to go north or south, go a few blocks west and take one of the roads less traveled. Meridian Ave is a good choice: plenty of interesting Miami-style houses to see and a local park. If you didn't bring your own bike, bike rentals will run about $8 an hour or $30 a day (or 24-hour time period).