Free attractions do not save you money if the transport does not. These are the four line items that undo a cheap Miami trip.
Parking. A South Beach meter is around $4 an hour and a city garage $20 to $30 a day. Valet in South Beach is routinely $30 to $50. A day of free attractions in South Beach can cost $40 in parking alone. Park once for the day, or do not drive there.
Tolls and rental car admin. Nothing on a Miami expressway takes cash. The hire firm signs the car into a plate-reading toll account and charges you an administration fee for each day you hold the keys, regardless of whether you went near a gantry. A week of genuine tolls can multiply several times over by the time the invoice lands. Ask at the desk what the product costs, and if your week is beaches and neighbourhoods, plan routes that stay off the expressways.
Rideshare surge. $15 to $30 between mainland neighbourhoods is normal. Across a causeway at rush hour, or anywhere at 2am on a Saturday, it is much more.
Automatic service charges. Restaurants in South Beach and on the causeway islands frequently add 18 to 20 percent to the bill automatically. Adding a further tip on top is the most common way visitors overpay in this city. Read the check.
The two ways to genuinely travel cheaply here. First, base yourself downtown or in Brickell and use the free Metromover, which removes both parking and most rideshares. Second, travel in August or September, when hotel rates are at their annual floor, accepting heat, humidity and a short afternoon thunderstorm most days. It is hurricane season, so buy insurance, but the price difference against February is large.