Where is Cayo Diablo (reef stop) located?

Cayo Diablo (reef stop) is located in Fajardo, Puerto Rico. The exact coordinates are 18.3708, -65.5588. You can use GPS navigation or follow signs to Fajardo and look for beach access points.

Is Cayo Diablo (reef stop) good for swimming?

Yes, Cayo Diablo (reef stop) is a public beach open for swimming.

What facilities are available at Cayo Diablo (reef stop)?

Cayo Diablo (reef stop) is a natural beach. Facilities may be limited, so consider bringing your own supplies.

What activities can I do at Cayo Diablo (reef stop)?

Popular activities at Cayo Diablo (reef stop) include snorkeling. The beach is perfect for a day trip from Fajardo.

Cayo Diablo (reef stop) - Fajardo | Puerto Rico Beach Finder

At a glance

You can only reach Cayo Diablo by boat — most visitors book a tour or water taxi from Fajardo.

Swimming

Check the surf

Snorkel

Great — reef

Family

Family-friendly

Access

Boat only · See tours →

Best for

Diving
Secluded

Getting there

Boat or water taxi from Fajardo. Most visitors book a tour. See tours →

Best time

Best season: December through April offers the most pleasant weather with lower humidity.

Know before you go

Boat access only

Tours and water taxis depart from Fajardo. See tours →

No lifeguard

Swim with a buddy and know your limits.

Limited facilities

Bring water, shade, and food for the day.

Conditions today

85°Light drizzle · feels like 94°

☀ UV High 💨 Wind 7 mph

🌿 Sargassum: none reported

☀ Sunrise 6:09 am🌙 Sunset 6:28 pm

Where it is

Fajardo · East Coast18.37°N 65.56°W

Ways to experience Cayo Diablo

Bookable tours and activities at and around this beach.

Viator partner

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About Cayo Diablo

Cayo Diablo is a small reef cay in the La Cordillera chain east of Fajardo, better known as a snorkel stop than a place to spread a towel — sandy landing spots are few and the real draw is underwater. Turtles graze the surrounding reef, and catamaran tours often pause here on the way to or from Icacos.

Local tips

✔Bring your own snorkeling gear for the best fit and visibility

✔Download offline maps before visiting as cell service may be limited

✔Bring your own food and drinks - limited vendors in the area

✔Help preserve the beach beauty by taking all trash with you when you leave

✔Bring plenty of water - staying hydrated in the tropical heat is essential

Plan Your Visit

What to Bring+

Water & Sun Protection:

Reef-safe sunscreen (SPF 30 or higher) - tropical sun is intense, especially 10 AM-2 PM
Reusable water bottle - stay hydrated in tropical heat
Hat or visor - essential sun protection
Beach umbrella or pop-up shade tent - natural shade is limited

Snorkeling & Diving Gear:

Snorkel set (mask, snorkel, fins) - bring your own for best fit and visibility
Dive certification card - if planning to dive
Personal dive gear or contact local dive shops for rentals
Underwater camera (optional) for documenting marine life

Food & Supplies:

Own meals and snacks - no food vendors at or near this beach
Cooler with plenty of water - essential, as amenities are unavailable
First aid kit - no lifeguards present; swim at your own risk

About This Beach

History & Background+

Cayo Diablo (reef stop) is located in Fajardo, an eastern coastal municipality on Puerto Rico's shore where the Atlantic Ocean and Caribbean Sea converge. Fajardo serves as a gateway to offshore cays and the bioluminescent Laguna Grande, with steady trade winds defining the region's character.

This secluded reef destination features sand tongues and clear waters with diverse marine life, popular for snorkel tours but with limited sandy landing spots. The area reflects the ongoing relationship between coastal communities and the sea, visited by both local families and travelers discovering this remote stretch of shoreline.

Nearby Attractions+

Cayo Diablo is situated in Fajardo, which offers several attractions beyond the beach itself. The town center features a central plaza with a church, local shops, and cafes—a good place to experience everyday Puerto Rican life. Many towns hold weekend markets or festivals throughout the year, particularly during patron saint celebrations (fiestas patronales).

Las Cabezas de San Juan Nature Reserve: A premier nature preserve with hiking trails, lighthouse, and panoramic views. Well worth a visit if you have extra time.
Fajardo Marina District: Home to local restaurants, water taxis, and tour operators serving fresh seafood and traditional Puerto Rican cuisine.
Luquillo: Neighboring town a short drive away, worth exploring for beaches and local culture.
Nearby beaches: Playa Sardinera (Fajardo), Playa Escondida (Fajardo), and Icacos Beach—each with different character for beach hopping.
Local dining: Look for roadside kiosks (chinchorros) serving mofongo (mashed plantain), tostones (fried plantain slices), empanadillas, bacalaítos (codfish fritters), and piraguas (shaved ice with syrup).