Swim inside a glowing sea cave, snorkel emerald grottos, and unwind on Lopud's finest beach — all in one unforgettable speedboat day from Dubrovnik Old Town.
Featured Tour
The Blue Cave, Lopud, and Sunj Beach Speedboat Tour from Dubrovnik is the region's most celebrated island-hopping adventure, earning a near-perfect 4.9-star rating from nearly 3,000 travellers. Departing daily from Dubrovnik Old Town, Cavtat, Mlini, and Srebreno, this fast-paced speedboat excursion combines natural wonders, snorkelling, optional cliff jumping, and a long lazy afternoon on a golden sandy beach into a single seamless day on the Adriatic.



About This Tour
Your adventure opens with sweeping panoramic views of Dubrovnik's iconic city walls as your speedboat pushes south toward Koločep Island. The first highlight is the legendary Blue Cave, a sea grotto accessible only by swimming through a narrow entrance. Once inside, sunlight refracts through the crystal-clear water to paint the cavern in vivid shades of turquoise and cobalt — a natural spectacle that never loses its magic, no matter how many times you see it.
After the Blue Cave, the boat moves on to the Three Green Caves — a trio of grottos that showcase the Adriatic's variety. Two of the caves offer calm, sheltered snorkelling with great visibility, while the third is a dramatic natural tunnel that cuts all the way through the island. Snorkelling gear is provided for all guests, so you can spend as long as you like drifting over the colourful seabed and through the emerald-lit passages without any extra cost.
The tour concludes at Šunj Beach on Lopud Island, one of the most beautiful sandy beaches along the entire Dalmatian coast. The speedboat drops guests as close to shore as beach regulations allow before anchoring nearby. Free time here is generous — enough to swim, explore the shoreline, or simply relax. Guests who order a drink at the bar marked by blue umbrellas are rewarded with a complimentary sunbed and parasol. From November to April, an alternative village stop replaces Šunj while it is closed.
Travel Guide
Plan Your Perfect Day on the Water
Because you will spend the bulk of this tour in, on, or very close to the sea, packing light and smart makes a real difference. Opt for a small dry bag or a waterproof backpack to keep your valuables safe on the speedboat. A rash guard or thin wetsuit top is worth considering, especially in spring and autumn when the sea is cooler and you will be spending extended time snorkelling through the caves.
Sun protection is essential on a full-day Adriatic excursion with limited shade on the boat. Bring reef-safe sunscreen and reapply it regularly, particularly after your snorkelling sessions. A compact, quick-dry towel saves space and dries fast between stops. Comfortable water shoes help when scrambling around cave entrances and the rocky areas near Koločep, while a light cash reserve is handy for buying drinks or snacks at the Šunj Beach bar.
The day begins with a scenic speedboat ride south from your departure point, passing the ancient Dubrovnik city walls for a postcard-worthy opening view. As the boat picks up speed across the open Adriatic, your guide briefs the group on each stop ahead. The energy on board is relaxed but excited — this is the kind of tour where strangers quickly become friends over shared swims and spontaneous cliff jumps.
Cave stops are interactive and unhurried. At the Blue Cave, guests enter the water and swim inside — your guide leads the way and explains the cave's geology and light conditions. The Three Green Caves follow a similar pattern: snorkel, explore, and photograph at your own pace. The afternoon beach stop at Šunj is generous in length, giving everyone ample time to decompress after the morning's more active segments before the speedboat returns to port.
The Blue Cave is accessible only by swimming, so a basic level of comfort in open water is strongly recommended. You do not need to be an experienced swimmer, but guests who are not confident in the sea should discuss this with the crew before entering. Life vests are available on the boat, and the guides are trained in water safety. Children are welcome, and the crew is experienced at adapting the experience to mixed-age groups.
Departure times can vary slightly depending on which of the four pick-up points you choose, so confirm your exact meeting time when you book. From November through April, Šunj Beach is closed and the final stop is adjusted to either Lopud village or Koločep village — equally charming, just different in character. Cancellations and date changes are typically accommodated with sufficient notice; check the specific policy on the booking page before confirming your reservation.
Traveler Reviews
See why travelers call this the best blue cave boat tour dubrovnik has to offer — real reviews from real adventurers.
"Absolutely the highlight of our entire Croatia trip. The cave itself glowed an unreal shade of electric blue that photos simply cannot capture. Our guide was knowledgeable, funny, and made sure everyone felt safe jumping into the water. The stop at Sunj Beach afterward was a perfect way to wind down before heading back to Dubrovnik."
"We booked this speedboat excursion on a whim and it turned out to be the best decision of the holiday. The small group size meant we never felt rushed or crowded inside the cave. Lopud island was a charming bonus we hadn't expected — we grabbed coffee at a little café and soaked up the old-town atmosphere. Highly recommend getting there early in the morning for the calmest seas."
"Really enjoyable day out on the Adriatic — the cave was stunning and the crew kept everything running smoothly. I'm giving four stars only because the swimming stop felt a little short; I could have floated in that turquoise water for hours. Everything else, from the pickup logistics to the on-board snacks, was well organized. Would still recommend it without hesitation to anyone visiting Dubrovnik."
"This was genuinely one of the most magical experiences I've ever had on any vacation. Watching the light filter through the cave entrance and illuminate the water beneath us left the whole boat speechless. The speedboat made the journey between stops feel exciting rather than tedious, and Sunj Beach is simply paradise. Don't hesitate — just book it."
FAQ
Everything you need to know before you set sail — your top questions answered honestly and in detail.
Ready to experience the Blue Cave, Lopud, and Sunj Beach Speedboat Tour from Dubrovnik for yourself?
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