Dubrovnik, often called the Pearl of the Adriatic, gives you easy access to the dazzling Blue Cave on Koločep Island. Just a 30–45 minute boat ride away, this cave in the Elafiti archipelago glows with sunlight that filters through the water, creating a magical blue shimmer. The best part? You’ll swim and snorkel inside, with time to soak up both the cave’s glow and Dubrovnik’s stunning coastline.

Overview:

• Distance from Dubrovnik to Blue Cave: About 8 nautical miles
  
• Duration of the tour: 4–5 hours (half-day) or 6–8 hours (full-day)
  
• Best time of year: May–September, when the sea is warm and the cave glow is strongest
  
• Meeting/drop-off point: Dubrovnik Old Port or Gruž Harbor
  
• Key attractions: Blue Cave (Koločep), Sunj Beach (Lopud), Šipan Island, hidden coves of the Elafiti Islands
  
• Most popular tour: Blue Cave, Green Caves & Sunj Beach Cruise with Drinks

Things to know before booking your tours from Dubrovnik

• The tour last about 4 hours, making them perfect half-day experiences from Dubrovnik. Choose between morning or afternoon departures to match your schedule.
  
• Expect snorkeling gear, unlimited drinks, sunshade seating, and expert skippers. Some options also include GoPro cameras, private boat hire , or upgraded drink packages (beer, wine, sodas).
  
• Depending on the option selected, tours include hotel pickup in Dubrovnik city area or transfers from a central meeting point.
  
• The Blue Cave on Koločep is accessible only by boat. Swimming inside may require entering through a low natural opening, so be prepared for a bit of adventure.
  
• Pack swimwear, a towel, reef-safe sunscreen, sunglasses, and a waterproof bag for your belongings.
  
• The glow inside the Blue Cave is strongest around midday (11am–1 pm). So plan for a morning tour to catch the best view.
  
• Note: This tour takes you to the Blue Cave on Koločep Island, which is different from the more famous Blue Cave on Biševo Island. Both are equally stunning, but it’s easy to mix them up.

Blue Cave tour from Dubrovnik itinerary

Morning: Start your adventure at the dock opposite Gruz Market, where you'll be boarding your boat. Along the way to Blue Cave, you'll cruise past Dubrovnik's stunning landmarks like the majestic Franjo Tuđman Bridge and the historic Grebeni Lighthouse standing guard over the Adriatic.

Midday: Arrive at the magnificent Blue Cave, where your boat anchors near the entrance. From here, you'll swim into the cave to see the blue glow. Next, you'll be headed to Kolocep's three Green Caves, where you'll see similar natural phenomenon that creates stunning emerald illumination.

Afternoon: Spend time in the Sunj Beach where you can either choose to relax or go around cliff jumping or swimming and snorkelling in turquoise waters. Post this, you'll be returning to Dubrovnik.

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