WHAT OUR CLIENTS SAY
"I did 3 dives with Marco at the Murciélago Islands and everything was perfect. Marco is very kind and professional, both in and out of the water. If you're visiting the area, don’t hesitate to contact him for an amazing diving experience!"
David Hodges
"We encountered breathtaking sea life, including large bull sharks, active octopuses, and massive schools of fish... Our favorite dive was definitely at Bat Island an absolute highlight!
"Insanely cool dives (2 bull shark dives, 1 reef wall) at the Bat Islands. Marco is the coolest, most relatable dive master I’ve ever worked with on my 20+ excursions around the globe. Recommend 100%"
ABOUT MURCIELAGO ISLANDS
Located within the protected waters of Santa Rosa National Park, the Murciélago Islands are one of Costa Rica’s most exhilarating dive destinations. Known for dramatic volcanic underwater terrain, nutrient-rich currents, and thriving marine biodiversity, these islands offer some of the most thrilling big-animal encounters in the country.
Natural Bull Shark Encounters
Murciélago is world-renowned for its consistent encounters with large bull sharks in their natural environment and is one of only five places in the world where divers can reliably observe bull sharks without the use of baiting or chumming.
Big Pelagic Marine Life
The islands attract manta rays, schools of jacks, tuna, and other roaming pelagic species year-round.
Protected National Park Waters
Nestled within the protected waters of Santa Rosa National Park, Murciélago’s marine ecosystem thrives under the preservation of one of Costa Rica’s most important natural reserves.
WHAT SETS THIS EXPERIENCE APART
Naturalist-Guided Experience
Gain expert insight into bull shark biology, behavior, and ecology through a guided naturalist briefing before every expedition.
Behavior Observation Focus
Learn to interpret shark movement, body language, and interactions—transforming every dive into a wildlife observation experience.
Remote Offshore Adventure
Explore the legendary Murciélago Islands, a remote offshore ecosystem known for dramatic volcanic seascapes and big pelagic encounters.
Small Group Premium Format
Enjoy a personalized, small-group experience designed for better safety, flexibility, and a more intimate connection with the environment.
ESSENTIAL INFORMATION
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DURATION:
Half-day tour, aprrox. 7 hours
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DEPARTURE:
Playa Potrero to the Murcielago Islands
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SCHEDULE:
- 6:45 am meet at the dive shop
- 1:30 -2:00 pm. Return to Potrero beach
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SEASON:
Murcielago season starts in April through November. Best season from April to August.
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GROUP SIZE:
1 to 4 divers max per guide
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REQUIREMENTS:
Certified divers only (25+ dives) or Advanced Open Water certified
WHAT'S INCLUDED
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Round-Trip Boat Transportation
Comfortable offshore transport to and from the Murciélago Islands aboard a fully equipped dive vessel.
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Multiple Dive Sites
Our expeditions explore multiple locations within Murciélago, including the legendary bull shark site Big Scare and Black Rock, one of the islands’ most vibrant dives known for rich marine life and dramatic underwater terrain.
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Full Dive Equipment
Complete scuba equipment provided for a seamless and worry-free experience.
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Naturalist Shark Briefing
Pre-dive educational session covering bull shark behavior, ecology, and observation techniques.
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Snacks & Refreshments
Light snacks and beverages provided onboard between dives.
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Safety Equipment
Emergency oxygen, first aid kit, and full offshore safety equipment onboard at all times.
