Interstate 95 is the major expressway connecting South Florida with points north; State Road 836 is the major east–west expressway and connects to Florida's Turnpike, State Road 826, and Interstate 95. Seven causeways link Miami and Miami Beach, with Interstate 195 and Interstate 395 offering the most convenient routes; the Rickenbacker Causeway extends to Key Biscayne from Interstate 95 and U.S. 1. The high-speed lanes on the left-hand side of I–95 require a prepaid toll gadget called a "Sunpass," available in most drug and grocery stores.
Remember U.S. 1 (aka Biscayne Boulevard)—you'll hear it often in directions. It starts in Key West, hugs South Florida's coastline, and heads north straight through to Maine.
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