Leave Tallahassee around 6:00 AM for the roughly 9.5–10.5-hour drive to Key Largo, taking I-10 east, Florida’s Turnpike, and US-1. Allow time for fuel, a proper lunch stop, traffic around Miami and Florida City, and the final slower stretch across the Overseas Highway. A realistic arrival is mid- to late afternoon, depending on breaks; keep the day flexible rather than booking anything timed. Stop for fuel before entering the Keys, and expect limited shoulder space and occasional congestion on US-1. On arrival, unload at your lodging and leave the car there if parking is included—Key Largo is spread out, and driving is easier than relying on rideshare.
After checking in, take the short drive to John Pennekamp Coral Reef State Park for an easy introduction to the Keys. A shoreline walk and time around the mangroves make a good leg-stretcher after the long drive; allow about 1½ hours. The park generally operates from 8:00 AM until sunset, with a per-vehicle entrance fee commonly in the low-$10 range, though 2027 rates may change. If you want the glass-bottom boat rather than simply exploring shore, reserve ahead through the park because departures are capacity- and weather-dependent; do not count on a late-afternoon sailing being available after the drive.
Have an early, casual dinner at Key Largo Fisheries, a waterfront spot known for fresh local seafood and an unfussy atmosphere. Plan on roughly $20–35 per person, depending on your order, and allow about an hour. It is a good first-night choice because you can eat without dressing up or committing to a long evening. Afterward, return to your lodging and rest—the drive is the main event today, and an early night will make tomorrow’s Islamorada outing much more enjoyable.
Drive from Key Largo to Robbie’s of Islamorada on Lower Matecumbe Key via US-1, allowing roughly 30–40 minutes plus a little time to park. Leaving around 7:30–8:00 AM gets you there before the docks feel crowded and leaves room for the day’s timed activities. The tarpon-feeding area has a modest admission and fish-feeding fee; any fishing, snorkeling, or sightseeing charter should be reserved ahead, especially for a Saturday in May. Give yourselves about two hours to wander the marina, browse the small shops, and watch the pelicans and tarpon around the pilings.
Continue north a few minutes on US-1 to Theater of the Sea on Windley Key. Plan approximately 2½ hours for the marine-life presentations, lagoon areas, and tropical gardens; check the 2027 presentation schedule before booking, since showtimes determine how efficiently you can tour. Wear sun protection and comfortable shoes, and expect admission to be a significant part of the day’s budget. Afterward, take a relaxed lunch nearby rather than trying to squeeze in another major attraction—the Keys are best enjoyed with time for the water views and roadside stops.
Head to Florida Keys Brewing Co. in Islamorada for a low-key mid-afternoon break, about a 10-minute drive along US-1. The colorful garden and outdoor seating make it a good place to slow down after the morning’s activity; allow about an hour for a tasting or a single pint, with nonalcoholic options available. Designate a driver, and check current taproom hours before setting out, as smaller brewery schedules can vary seasonally.
Finish at Morada Bay Beach Café, where the broad waterfront setting is especially appealing near sunset. Arrive early enough to get settled before the evening rush, then allow about 1½ hours for dinner; budget roughly $35–60 per person before drinks and gratuity. It is a short drive from the brewery, but rideshare service can be inconsistent in the Upper Keys, so your rental car is the practical choice. Sunset timing in May is roughly 8:00 PM, though confirm locally, and keep the evening unhurried—this is one of the days where lingering by the bay is part of the experience.
Arrange your Indian Key Historic State Park kayak or boat excursion in advance, aiming for an early departure from Islamorada. The crossing to the island takes only a short time, but plan roughly three hours for the round trip, walking the overgrown historic paths, and exploring the remains of the 19th-century settlement. There are no shops or dependable shade on the island, so bring water, reef-safe sunscreen, a hat, and shoes suitable for uneven ground. The trip is weather-dependent, and the operator may cancel or reschedule for wind or rough water—confirm the launch point and cancellation policy the day before.
After returning to shore, collect the car and follow US-1 south toward Marathon, allowing about 45–55 minutes in normal traffic. Have a quick lunch en route or in Marathon, then arrive early for your timed The Turtle Hospital tour; admission is commonly reservation-based, so secure a 2027 slot rather than relying on walk-in availability. The educational visit usually takes about 90 minutes and includes the rehabilitation facilities, resident turtles, and conservation work. Keep the schedule slightly flexible after the tour, since loading groups and questions can make the visit run longer than advertised.
Drive south toward the Seven Mile Bridge and use the designated overlook or nearby access area for photographs and a short stroll—allow around 45 minutes, and don’t stop on the bridge shoulder itself. Afterwards, head back into Marathon for dinner at Keys Fisheries, a relaxed waterfront spot known for casual seafood and sunset views. Expect roughly $20–35 per person before drinks; arrive early enough to choose a table, as service can be leisurely and busy periods are common. May is hot and humid, so keep the evening unhurried and save time for watching the boats and light over the water.
Leave Marathon around 7:00–7:30 AM and follow US-1 south toward Big Pine Key, allowing roughly 45–55 minutes plus a little extra for parking and park-entry lines. Continue on the Overseas Highway to Bahia Honda State Park, where the morning light is best for swimming, snorkeling, and walking toward the old railway bridge. Give yourselves about three hours here; bring water, reef-safe sunscreen, towels, and snorkel gear, since rentals and beach facilities can be limited. Check the park’s current beach conditions and any capacity or reservation requirements before setting out—entry can be restricted on busy days, even outside the main summer season.
After leaving Bahia Honda State Park, drive back north on US-1 into Big Pine Key for a quieter wildlife-focused afternoon at the National Key Deer Refuge. Spend about 90 minutes following the refuge’s signed roads slowly, especially around grassy edges and residential stretches, but do not approach or feed the deer; sightings are never guaranteed. Continue a short distance to Blue Hole, a former quarry with a brief trail and observation area. Forty-five minutes is enough for the visit, though the heat and mosquitoes can be noticeable, so closed shoes, water, and repellent are worthwhile.
For dinner, drive to No Name Pub on nearby No Name Key, reached via the short bridge from Big Pine Key. Its casual, famously sticker-covered interior suits the day, with straightforward island fare and drinks at roughly $20–35 per person. Allow about an hour, and check the pub’s current Monday hours before going because Lower Keys businesses can keep seasonal schedules. The road back is dark and deer are active after sunset, so drive slowly on No Name Key Road and US-1; keep the evening unhurried rather than adding another stop.
Leave Big Pine Key around 7:00 AM for Fort Zachary Taylor Historic State Park, allowing 45–55 minutes on US-1 plus a little extra for Key West traffic. The park is the right first stop: arrive near opening, before the small lot fills and the beach becomes busy. Set aside about 2½ hours for the Civil War fort, shaded paths, and swimming or relaxing on the beach; bring water shoes if you have them, as the shoreline is more pebbly than sandy. Park entry is typically charged per vehicle or person, so expect roughly $8–10 for a standard car, but check the state-park website before leaving for current hours and any capacity notices.
From the park, drive or use a taxi/rideshare into Old Town—roughly 10–15 minutes, depending on traffic—and park once rather than moving the car repeatedly. Walk to the Key West Butterfly and Nature Conservatory on Duval Street for about an hour among tropical plants, butterflies, and birds. Tickets are generally around $18–25 per adult; buying ahead is sensible in May, though entry remains subject to operating hours and capacity.
Continue on foot through Old Town to the Ernest Hemingway Home and Museum, about a 10-minute walk. The guided tour and gardens take roughly 1½ hours, and the famous six-toed cats are part of the experience. Allow about $18–20 per adult and verify the day’s tour schedule before relying on a specific entry time. Afterward, wander the quieter residential lanes around Whitehead Street and Bahama Village rather than trying to squeeze in another attraction. For dinner, settle into the garden at Blue Heaven, where the setting is as memorable as the food; expect approximately $30–55 per person before drinks and tip. Reservations are useful, but confirm current booking procedures and arrive with patience—the meal is deliberately unhurried.
Walk from Blue Heaven toward Mallory Square afterward, allowing about 15–20 minutes through Old Town. Reach the waterfront 30–45 minutes before sunset to find a reasonable viewing spot among the street performers, musicians, and craft vendors. Sunset times vary in May, so check the exact time that morning; keep wallets and phones secure in the crowd, and arrange a taxi or rideshare back to Big Pine Key only if you are not returning to nearby accommodation, since late-night service in the Lower Keys can be limited and less dependable.
Leave Key West around 6:00 AM for the long drive to Tallahassee, allowing 10–11 hours door to door with fuel, breakfast, traffic, and comfort stops. Take US-1 north through the Keys, then follow Florida’s Turnpike toward the mainland and join I-10 W for the final leg. Build in extra time to clear Key West’s morning traffic and, if this is a one-way rental, return the car in Tallahassee before the agency closes; confirm its after-hours drop procedure in advance. Expect roughly $70–110 in fuel plus tolls, and keep Google Maps or Waze running because Miami-area traffic can change the timing substantially.
Make a brief 30–45-minute break at Robert Is Here Fruit Stand in Homestead, conveniently near the mainland end of US-1. It is a good place for a tropical-fruit smoothie, fresh-cut fruit, or something portable for the next stretch rather than a full sit-down meal. Hours can vary seasonally, so check the current schedule before leaving Key West; if the stand is closed, use this as a fuel and breakfast stop instead and continue north without trying to make up time on the road.
Continue via Florida’s Turnpike and I-10 W, stopping every couple of hours for fuel and a proper meal—Fort Myers, Naples, or Tampa-area services are better options than waiting until late in the drive. Arrival in Tallahassee will likely be late afternoon at the earliest and may slip into the evening with traffic or longer breaks, so keep the evening completely open. After dropping the car and checking in, grab an easy nearby dinner rather than planning another attraction; this is a recovery night after one of the trip’s longest travel days.
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