Blue water, short swims, and a half-day rhythm that feels like a good escape. This small-group speedboat tour strings together the big cave names (plus Dark and Passage Cave as part of the experience) and tops it off with Lopud’s Šunj Beach, where the water is shallow for a long way out. You also get snorkeling gear and a cooler of drinks to keep the trip from feeling like just hopping from one photo spot to the next.

I like that the trip is built around time you can actually use: you get a view of Dubrovnik from the sea right away, then you spend real minutes swimming and floating in clear water. I also like the practical touch of pool-noodle floaters for anyone who wants the cave water vibe without being a fearless swimmer.

One consideration: the Blue Cave is not boat-accessible. The boat anchors nearby, and you enter by swimming because the cave entrance is too small for the speedboat to get inside. If the sea is choppy, you may get less swimming (or a changed plan) for safety.

Key Highlights You’ll Care About

• Up-close Blue Cave access by swimming: the boat anchors about 20 meters out, and you go in as a swim.
• Emerald light in the Green Caves: sunlight plays on the cliffs for an extra color shift compared to the Blue Cave.
• Šunj Beach’s shallow shelves: the seabed runs out roughly 100 meters, which helps when you’re not confident in deeper water.
• Snorkel kit plus floaters: masks, breathing tubes, and “noodles” help you enjoy the water comfortably.
• A half-day with a built-in break: caves take a chunk of the clock, then you get about an hour on Lopud to cool down.
• Max 18 people: smaller than the big-boat feeling, and easier for the skipper to manage cave entries.

Dubrovnik by Sea: Why This 4-Hour Format Feels Right

The best part of this kind of tour is also the hardest part for Dubrovnik day trips: time. Dubrovnik is compact, but driving or hopping between islands can eat your day. This tour keeps things tight at about 4 hours, with a schedule that usually runs morning or afternoon so you can still see the old town afterward.

From the first minute, you’re not stuck looking at cruise crowds from land. You start with a panoramic look at the old city walls while the skipper shares legends and facts, including views from below Lovrijenac Fortress on a steep cliff above the Adriatic. Even if you’ve already walked the walls, seeing that coastline angle from the water makes it click.

The First Minutes: Views Under Lovrijenac Fortress

This boat portion matters more than it sounds. Dubrovnik’s big sights can look flat from streets. From the water, you get the layered cliff geometry—how the walls stack above the sea, and how the peninsula shapes the harbor feel.

It’s also when the skipper sets expectations: how cave entry works, what to watch for, and how to move around the boat safely. If you’re nervous about getting in and out of the water, this “getting your bearings fast” phase helps.

Practical note: meeting at the pier can feel quick and busy because multiple boats load and unload. Having your hat, sunscreen, and swim gear ready to go reduces stress.

Blue Cave: The Glowing Water and the Reality of Swimming In

Blue Cave is the headline for a reason. The water turns a glowing blue from natural light reflection, and the effect shows up best when you’re in it, not staring through the boat window.

Here’s the key operational detail you should plan around: the speedboat cannot enter the Blue Cave. The entrance is too small, so the boat anchors roughly 20 meters out, and you swim in to reach the cave interior. There’s about 40 minutes at the stop, and that time is usually the difference between enjoying it and feeling rushed.

What to bring mentally (and physically)

• Wear swimwear you’re fine with pulling on quickly.
• If you’re unsure in open water, use the provided floaters. People often mention “noodles” as a lifesaver for comfort in waves and getting in/out.
• Treat cave entry like a short swim workout, not a long hangout. You’ll want calm focus as you approach.

Crowds can be part of the deal. The Blue Cave is famous, and you may share the water with other boats. Your skipper will do what they can to manage timing, but physics and popularity both matter here. If the sea is active, you might find entry and exit a bit bouncy, even with a careful captain.

Green Caves, Canyon Passage, and That Emerald Light

After Blue Cave, the itinerary shifts to a cluster of cave stops often grouped as “Green Caves.” Sunlight creates an emerald glow inside, which is a different mood than the electric blue of the first stop.

You’ll also get at least one canyon-like cave section—a narrow passage carved into the cliffs. Some parts can involve optional swimming and snorkeling depending on conditions. In practice, this means not every cave stop is equally “easy.” Some passages are tight, and you may need confidence moving through water and managing your gear.

One useful thing I learned from how people describe the experience: the guides tend to stay on the boat for the caves, which means you do more self-guided movement once you’re in the water. That’s not unsafe by default, but it does help to follow the skipper’s instructions carefully before you get in.

Also watch for timing shifts. If the sea is rough, swimming options can shrink. I’ve seen it described as an instance where someone couldn’t fully enjoy a Green Cave swim and an alternate site was provided. The takeaway is simple: the plan is flexible when safety requires it.

Šunj Beach on Lopud: The Break You Actually Need

Caves are fun, but saltwater + sun + movement adds up. That’s why the Lopud beach stop feels like the smartest part of the tour structure.

You’ll reach Šunj (Sunj) Beach on the south side of Lopud Island, then get about one hour to swim, relax, and cool down. This is where the tour stops being just “activity” and turns into a real break.

What makes Šunj practical is the shallow seabed. The water stays shallow for about 100 meters from shore, which makes it easier for kids and less-confident swimmers to enjoy without immediately dealing with deeper drop-offs. If you’re traveling with anyone who needs a gentler entry, this is a big plus.

What the hour looks like on the ground

• The beach is sandy, and the water is crystal clear.
• You’ll likely find a bar/restaurant setup nearby, plus easy beach time for snacks or a drink.
• Sunbeds can mean an extra rental fee, so if you’re picturing a pre-booked chair, plan for optional costs.

If you like spending your time doing nothing, you’ll appreciate the hour. If you want a longer beach day, you’ll probably wish you had more time. One common complaint is that by the end, the beach feels like it passes quickly.

Drinks and Snorkeling Gear: Small Details That Make It Feel Like Value

This is one of those tours where the inclusions matter. At $84.65 per person for about four hours, the price starts to make sense because you’re not just paying for transport—you’re paying for comfort and time in the water.

Included:

• Snorkeling masks and breathing tubes.
• Alcoholic drinks (local beer, red and white wine, grappa).
• Soft drinks like sparkling drinks and natural juices.
• Bottled water.

Two practical notes from real use:

• If you want a wider variety of alcohol, you might feel limited. People describe the alcoholic offering as beer-forward, with other options like wine and grappa included, but not a full bar cocktail menu.
• If you care about music volume, be aware that onboard playlists can get loud. Some folks love the vibe; others want quieter.

Snorkeling itself

You don’t need to be an expert to enjoy the caves. The gear helps, and the clarity is usually what people come for. Floaters make a difference too—especially when you’re entering and exiting with waves.

Getting In and Out of Caves: The Part That Actually Tests Your Day

Caves are breathtaking, but the “how” is what shapes your memory.

Blue Cave entrance

You’re swimming into a spot where the light effect works best. The boat anchors; you move from boat to cave on your own (with gear and floaters if needed). If you’re carrying yourself carefully and using a mask, you’ll feel the reward fast.

Green/Canyon cave segments

Some cave sections are tighter or less friendly for all swimming abilities. People have described at least one Green Cave as difficult, with narrow canyon conditions that required more effort to reach certain openings. That doesn’t mean you have to conquer everything; it means you’ll get more out of it if you’re comfortable with water movement and following your limits.

Choppy water effects

When sea conditions get rough, you can’t “force” the plan. Safety controls what you can do. In some cases, that leads to fewer swim moments or an alternate cave stop. A couple bad experiences describe big plan changes due to rough conditions, including time shifted away from advertised caves. On the flip side, when conditions cooperate, the caves can feel like a clean highlight reel with enough time to enjoy each.

Weather and Safety: The Real Dealbreaker

This tour requires good weather. That’s not fine print—it’s the heart of how the day works. Clear calm water makes snorkeling and cave swimming enjoyable. Windy or choppy water can shrink what you can safely attempt.

So here’s how to protect yourself:

• Pick a day when you’re not banking on the caves as your only “must do.”
• Don’t schedule a tightly timed dinner right after your tour. Waves and sun can throw off energy levels.
• If the sea is active, expect bouncier boat rides, especially when entering and leaving the water.

Your good news: the operator’s policy framework includes adjustments if conditions are unsafe. If the experience is canceled due to poor weather, you’re offered another date or a full refund. That’s how you should think about it: go in with flexibility, and you’ll likely get the best version of the tour.

Who This Tour Suits Best (and Who Should Think Twice)

This works especially well if you want:

• A half-day sea escape without the logistics headache.
• Big natural sights you can reach from Dubrovnik.
• Clear-water swimming and snorkeling, even if you’re a first-timer.
• Included drinks to keep the day feeling like an outing, not a chore.

It may be less ideal if:

• You hate swimming into tight cave entrances or you’re uncomfortable in water beyond ankle depth (even with floaters).
• You need a beach day longer than about an hour at Šunj.
• You strongly dislike loud music on boats.
• You’re prone to seasickness. The speedboat ride can feel lively when it’s windy.

Price vs. Value: What $84.65 Buys You Here

At this price point, you’re paying for several things at once:

• Transportation by speedboat between Dubrovnik and the Lopud area.
• Multiple cave stops with time built in for swimming.
• Snorkeling gear.
• Drinks and bottled water.
• A smaller group size (max 18), which generally makes water and movement feel more controlled.

What you’re not getting:

• Lunch is not included.
• Beach towels are not included.
• Any sunbed rentals are not listed as included.

If you plan to buy food and drinks anyway, the included cooler can reduce extras. If you already carry your own snorkeling gear and drink only water, the value drops a bit, but the cave access is still the main draw.

Should You Book This Blue Cave, Green Caves, and Lopud Beach Tour?

If you’re dreaming about glowing blue water, emerald cave light, and a beach where you can swim without instantly hitting deep water, I think this is a strong buy—especially in calm weather.

I’d book it if:

• You’re comfortable doing short swims from the boat.
• You want snorkeling gear and drinks included.
• You like a tight, efficient day instead of a full-day slog.

I’d hesitate if:

• You want a fully boat-entered cave experience with zero swimming.
• You’re booking during a weather-uncertain window and your plan can’t absorb changes.

One final practical tip: bring a towel anyway (since towels aren’t included), wear sunscreen before you meet the boat, and keep your expectations grounded. When the sea cooperates, the caves and the Lopud beach stop feel like they were made for a perfect half-day in Dubrovnik. When it doesn’t, you’ll still get a water-focused outing, just with a different balance of swimming versus relaxing.

FAQ

How long is the Blue Cave, Green Cave & Lopud Beach speed boat tour?

The tour runs for about 4 hours (approx.).

How much does the tour cost?

The price is $84.65 per person.

What’s included in the price?

Snorkeling equipment is included, along with alcoholic drinks, soft drinks, and bottled water.

Is lunch included?

No, lunch is not included.

What cave access should I expect for the Blue Cave?

The speedboat cannot enter the Blue Cave. It’s accessible only by swimming because the entrance is too small for the boat.

Do I get snorkeling gear?

Yes. Masks and breathing tubes are provided for snorkeling.

How much time do you spend at the beach on Lopud?

You get about 1 hour at Šunj Beach.

What group size should I expect?

The tour has a maximum of 18 travelers.

What happens if the weather is poor?

This experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund.