What are the best day trips from Miami?

The Everglades sit 65 km west of downtown Miami, about 45 minutes on US-41 with no traffic. Shark Valley's 24-km tram loop costs $25 per person, runs hourly from 9am, and takes 2 hours through sawgrass prairie where you hear nothing but red-winged blackbirds and the low bellow of bull alligators. The observation tower at the loop's midpoint rises about 14 meters above the sawgrass, flat green to the horizon in every direction. In June the air wraps around you like warm wet cloth and mosquitoes get aggressive after 4pm, so pack DEET. Shark Valley splits well for couples with different energy levels. Coopertown Airboats on US-41 runs 30-minute rides for $28 if one of you wants the speed and noise. The tram suits the other, near-silent with solid ranger narration along the 2-hour route. Meet back at Robert Is Here fruit stand on SW 344th Street in Homestead for a mango milkshake that tastes like it was made 10 minutes ago. Because it was.

Key Largo is 100 km south on US-1 and takes about 90 minutes from Miami, though Friday afternoon traffic can push that past 2 hours. John Pennekamp Coral Reef State Park, established in 1960, runs glass-bottom boat tours for $28 per adult with departures at 9:15am, 12:15pm, and 3pm. Good for the non-snorkeler. The snorkeling trip costs $35 and heads to Grecian Rocks, where coral heads sit in 5-8 feet of water warm enough in June to skip a wetsuit. You'll taste salt on your lips all the way back to Miami. On the drive back through Key Largo, stop at Mrs. Mac's Kitchen at Mile Marker 99 on US-1. The conch fritters crunch on the outside and stay tender inside, and a plate runs about $14. Skip the overpriced tiki bars closer to the John Pennekamp marina.

Palm Beach, 110 km north, is the only Miami day trip with real rail access. Brightline trains from MiamiCentral to West Palm Beach run roughly every 90 minutes, take about an hour, and cost $20-40 round trip depending on when you book. From the West Palm Beach station, a 15-minute Uber crosses the Intracoastal Waterway to Palm Beach island. The Henry Morrison Flagler Museum is the reason to come. Flagler built the 75-room Beaux-Arts mansion called Whitehall in 1902 as a wedding gift for his third wife, Mary Lily Kenan. The marble floors feel cool underfoot even in the Florida heat, and the Gilded Age furniture still carries a faint smell of old wood polish. Admission is $26. For lunch, Café Boulud at the Brazilian Court hotel on Australian Avenue serves a midday prix fixe around $35. Ask for the courtyard tables. Worth Avenue has the high-end shopping, but the Flagler Museum alone makes the Brightline ticket worthwhile.

Key West appears on every Miami day-trip list, and most of those lists skip the math. The drive is 260 km each way on US-1, 3.5 to 4 hours with no traffic, and there is always slowdown on the Seven Mile Bridge. That's 7-8 hours of windshield time for maybe 4 hours in Key West. If you want that Keys feel without the marathon, try Islamorada at Mile Marker 80, about 130 km south and 1.5 hours from Miami. Feed the tarpon at Robbie's Marina for $5 a bucket. The 100-pound silver kings will splash warm salt water up your arms while brown pelicans crowd in from behind. Grab stone crab claws at Islamorada Fish Company next door. You'll smell fried grouper from the Fish Company parking lot. For something quieter, Biscayne National Park sits 50 km south near Homestead. The visitor center at Convoy Point runs reef snorkeling trips for $45, and on a weekday morning in June you might have more fish than fellow visitors around you.