18+ Hotels in Key Largo, FL
Where You Can Check In at 18, 19 or 20

3 hotels in Key Largo, FL list a minimum check-in age of 18 on Hotels.com, so travelers aged 18, 19 and 20 can check in. Observed starting prices are $194 at Kona Kai Resort and Gallery and $249 at Kings Kamp per night. Kona Kai Resort and Gallery has the best guest rating, 9.8/10 from 346 reviews. Of these, 2 have a pool, 1 offers free parking and 1 accepts pets. Places mentioned near these hotels include Baker's Cay Resort Beach, John Pennekamp Coral Reef State Park and Bluefin Rock Harbor Marina. Hotel data checked in November 2026.

Policies can change: confirm the minimum check-in age with the hotel before booking.

hotels with 18+ check-in
3
lowest starting price, Kona Kai Resort and Gallery
$194
best rating, Kona Kai Resort and Gallery
9.8/10
accepts pets
1
have a pool
2

Dates are passed to Hotels.com to check availability and current prices.

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Showing 3 of 3 hotels.

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Kona Kai Resort and Gallery allows check-in for 18 year-old guests

Kona Kai Resort and Gallery

9.8/10 346 reviews Highly rated

2.5-star hotel

97802 Overseas Hwy, Key Largo, FL 33037, USA

Bluefin Rock Harbor Marina · 0.7 km · 8 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Pets: Pets not allowed

Nearby

  • Bluefin Rock Harbor Marina — 0.7 km, 8 min walk
  • Baker's Cay Resort Beach — 1.7 km, 1 min drive
  • Jimmy Johnson's Big Chill — 3.0 km, 2 min drive

From USD 194.00

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Coconut Bay Resort Key Largo allows check-in for 18 year-old guests

Coconut Bay Resort Key Largo

9.4/10 217 reviews Highly rated

2.0-star hotel

97770 Overseas Hwy, Key Largo, FL 33037, USA

Bluefin Rock Harbor Marina · 0.6 km · 6 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Pets: Pets not allowed

Nearby

  • Bluefin Rock Harbor Marina — 0.6 km, 6 min walk
  • Baker's Cay Resort Beach — 1.7 km, 1 min drive
  • Jimmy Johnson's Big Chill — 3.0 km, 2 min drive
Check availability
Kings Kamp allows check-in for 18 year-old guests

Kings Kamp

8.6/10 41 reviews Highly rated

2.5-star hotel

103620 Overseas Hwy, Key Largo, FL 33037, USA

John Pennekamp Coral Reef State Park · 0.9 km · 10 min walk

  • Free WiFi
  • Free parking
  • Air conditioning
  • Pet friendly

Minimum check-in age: 18

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Parking: Free uncovered self parking on site

Pets: Pets not allowed

Nearby

  • John Pennekamp Coral Reef State Park — 0.9 km, 10 min walk
  • Caribbean Club Bar — 0.9 km, 11 min walk
  • MarineLab Undersea Laboratory — 1.1 km, 12 min walk

From USD 249.00

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Nearby Cities With 18+ Hotels

Coral Gables 41 mi · 4 hotels
Miami 47 mi · 95 hotels
Marathon 48 mi · 4 hotels
Doral 48 mi · 3 hotels
Miami Springs 49 mi · 3 hotels
Miami Beach 51 mi · 16 hotels
Hialeah 52 mi · 2 hotels
North Bay Village 53 mi · 2 hotels
Hallandale Beach 62 mi · 10 hotels
Hollywood 64 mi · 37 hotels
Plantation 70 mi · 3 hotels
Fort Lauderdale 72 mi · 20 hotels
Key West 94 mi · 8 hotels
Tampa 235 mi · 28 hotels
Orlando 239 mi · 36 hotels

See all Florida cities with 18+ hotels

Key Largo Hotel Check-In FAQ

Can you check into a hotel in Key Largo at 18?

Yes. 3 hotels in Key Largo list a minimum check-in age of 18 on Hotels.com. Policies can change, so confirm with the property before booking and bring a government-issued photo ID.

Can I check in without a credit card in Key Largo?

Often, yes. Of the 3 hotels listed here, 3 accept debit cards and 3 accept cash, according to Hotels.com (Kona Kai Resort and Gallery, Coconut Bay Resort Key Largo and Kings Kamp). Most hotels still hold a deposit for incidentals at check-in, so call ahead to confirm they will take it without a credit card.

What time is check-in at 18+ hotels in Key Largo?

Check-in starts between 3 PM and 4 PM at the hotels listed here. Check-out is usually at 11 AM.

Which 18+ hotel is closest to Baker's Cay Resort Beach?

Kona Kai Resort and Gallery is the closest of the hotels listed here, 1.1 mi away, followed by Coconut Bay Resort Key Largo (1.1 mi) and Kings Kamp (7.6 mi).

What is the cheapest hotel in Key Largo for 18-year-olds?

Kona Kai Resort and Gallery had the lowest observed starting price, from $194 per night when we checked in November 2026. Prices change with dates: select your dates to see the current price on Hotels.com.