A morning at sea off L’Estartit is hard to beat for views. This is a small-group ride on the Nuria, a Catalan fishing boat built in 1942, with glass-bottom viewing that lets you watch marine life while you cruise. It’s also a good value way to see the Medes Islands and the protected coastline without committing to a full day.

Two things I really like: the chance to look down through the floor glasses during the cruise, and the fact that the group stays small (max 20 passengers), so you’re not stuck behind a crowd. Plus, the route includes both park time and sea time, so you get more than just cruising.

One drawback to consider: the underwater look and any swimming depend on conditions, and the guide style can feel more like practical orientation than a long lecture on every detail. If you want lots of narration nonstop, plan to ask questions.

Key things I’d plan around

• Small-group boat on the Nuria (max 20 passengers), an older Catalan fishing boat with a close-up feel
• Glass-bottom floor panels so you can spot underwater life without bringing snorkel gear
• Montgrí Natural Park stops with photo breaks, a guided element, a walk, and seasonal swimming time
• Caves and coves cruising where the boat route brings you close to the natural rock features
• Medes Islands time that includes a walk and continued marine-life viewing

The Nuria fishing boat: the ride feels personal

The boat used for this trip is the Nuria, described as a charming Catalan fishing boat built in the beach area of l’Estartit back in 1942. That matters more than it sounds. Older boats tend to feel less like a theme-park ride and more like you’re stepping onto a real working-water craft. You’re also on a limited group size—up to 20 passengers—so the experience stays calm.

You’ll be able to watch the sea through glasses placed strategically on the floor in front of your seat. Translation: you don’t have to move around, scramble for the best angle, or wait for the captain to “turn just right.” It’s built into where you sit.

The overall duration is about 1.5 hours, which helps if your schedule is tight. It’s long enough for real park stops and a cruise through the protected area, but short enough that you won’t feel trapped by sea time.

Finding the boat at Port de l’Estartit (without stress)

Your meeting point is at the Port de l’Estartit, at the beginning of the harbor. The easiest mental picture is: start on the Passeig Marítim, walk to the end where you’ll see a small playground and some information kiosks, then turn right after the last kiosk. From there, head into the harbor area where you’ll see fishing boats.

Look for a white board with BARCA NURIA written in red. The boat is after the fishing boats, at the harbor’s start.

A practical note: the tour lets you go straight to the boat with a booking about 15 minutes before departure. That’s enough time to orient yourself, but not a lot of extra wandering. If you’re coming from the town center, give yourself a bit of buffer so you don’t end up rushing.

Glass-bottom marine viewing: the main event on sea time

This trip uses a glass-bottom setup that’s part of the design, not an occasional gimmick. The glasses are positioned so you can see the underwater world while you’re seated, and the itinerary repeats this idea during key cruising segments.

Here’s why I think this is a smart approach: you get a clear view of the sea floor and marine life even if you don’t want to swim. That’s especially useful in shoulder seasons when the water may be less inviting. It also works if you’re not a confident swimmer. You still get the “what’s down there?” experience.

Also, the ride focuses on protected waters in the Medes area and around the Natural Park. That’s important because you’re not just sightseeing random coastline—you’re in a zone where marine life is a central point of the visit.

Montgrí Natural Park: photo stops, a walk, and seasonal swimming

The first big land-and-water combo happens at the Montgrí Natural Park. You’ll have photo stops, a visit with a guided element, and even a walk. That balance is what makes this tour feel more complete than a simple boat loop.

Expect scenic views along the way, plus a glass-bottom boat segment tied into this park portion. If your only exposure to this area is from town viewpoints, the park stop adds a different angle: more breathing space, more coastline context, and a break from being “stuck on the water” the whole time.

Then there’s the swimming option. From 15th June to September (and only when weather conditions allow), you can enjoy a 10-minute swim. You’ll do this to see marine life and the coastline from the water.

A key consideration: the swimming window is summer-season specific. If you’re visiting in spring or autumn, treat the trip as a mainly boat-and-walk experience with calmer cove time, not a guaranteed water-activity schedule.

Cruising caves and coves: the ship does the work

Between park time and the Medes Islands, the itinerary includes cruising through the caves and coves of the Natural Park. This is one of those activities where the best part is simply being close to the rock formations as the boat moves through.

One of the most praised moments is how the route takes you inside a cave area. That’s not described as a technical “tour into the rocks,” but the idea is clear: the captain navigates so you get a real sense of the grotto structure, not just a distant pass.

Even if you don’t care about caves specifically, this portion is useful because it breaks up the trip. You’re not just looking at scenery; you’re moving through a sequence of viewpoints, each with different rock shapes and water tones. It also tends to create a natural rhythm—sit and watch, then look up, then look down again through the glasses.

If you’re sensitive to sea motion, keep in mind that the experience still runs as a boat cruise. The ability to swim is weather-dependent, and rougher conditions can shift how comfortable the ride feels, even when the cruise still goes ahead.

Medes Islands on foot: marine life viewing continues

Once the boat reaches the Medes Islands, you get a walk and continued marine-life viewing. The itinerary also mentions another glass-bottom boat ride during this segment, so the focus stays on underwater observation rather than only land scenery.

This is a nice contrast to the cave portion. Caves and coves are about geology and close coastal views. The Medes Islands segment adds a land feel, plus the chance to observe marine life in a more “everything around me is part of the protection” way.

If you like experiences where the “wow” isn’t only photo angles, this fits. You’re not just passing by; you’re getting time on site and then returning to the glass-bottom view to keep exploring.

Price and time value: what about $28 makes sense

At about $28 per person for roughly 1.5 hours, the value comes from what’s actually included in that short window:

• A boat tour with a live guide (spoken in Catalan, English, Spanish, French)
• Glass-bottom viewing built into the seating area
• Park time with stops for photo moments and a walk at Montgrí Natural Park
• Medes Islands time including walking and marine-life viewing
• A chance for a short swim only in the summer season (15 June to September), when weather allows

In other words, you’re paying for a concentrated package: guided coastal experience + underwater observation + curated geography (Montgrí and the Medes), all without a full-day commitment. If your alternative is piecing together separate bus + walking viewpoints + snorkeling gear rental, this tends to feel simpler.

The one place the value can shift is the guidance depth. Some departures may feel more practical than story-heavy. If you love a lot of commentary, ask questions during the trip and don’t assume every moment will be packed with detail.

Who should book this trip (and who might not)

This boat trip suits you if:

• You want marine-life viewing and don’t want the hassle of snorkeling gear
• You prefer a small-group experience (up to 20 people)
• You’re visiting Catalonia and want a short coastal outing from l’Estartit that combines park views and sea cruising
• You like doing a bit of walking plus a lot of looking from the boat

You might choose something else if:

• You need a very long guided lecture with lots of factual history at every stop
• You’re traveling in a season outside mid-June to September and your main goal is swimming (the swim is seasonal)
• You’re extremely sensitive to boat motion; it’s still a cruise, even if it’s generally short

Should you book L’Estartit to Medes Islands and NP Caves?

If you’re in or near L’Estartit and you want a high-impact coastal experience in 1.5 hours, I’d say yes. The mix of glass-bottom viewing, a small group on the Nuria, and specific natural park stops (Montgrí) plus time at the Medes Islands gives you more variety than most short boat tours.

My only caution is expectations about guidance. The trip includes a live guide in multiple languages, but the experience can still feel like a practical, watch-and-go outing rather than a nonstop narration. If you’re fine with that—and you’re excited to look down through the boat floor and see what lives under the sea—you’ll likely come away feeling this was good use of time.

FAQ

How long is the boat trip?

The tour duration is about 1.5 hours, and you can check available starting times before booking.

Where does the tour depart from?

Meet at Port de l’Estartit, at the beginning of the harbor. Follow Passeig Marítim to the end, turn right after the last information kiosk, and look for the boat after the fishing boats with the BARCA NURIA sign.

What’s the boat called and how many people are onboard?

The boat is called the Nuria, and the experience is limited to a group of about 20 passengers.

Do I get glass-bottom viewing?

Yes. There are glasses placed on the floor of the boat so you can watch the underwater world while you’re seated.

Can you swim during the trip?

You can swim in clear waters from 15 June to September (end dates may vary by season and weather). The swim time described is about 10 minutes, and it depends on weather conditions.

What stops are included during the tour?

The itinerary includes Montgrí Natural Park stops with photo moments, a visit, and a walk, plus cruising through caves and coves, and then time at the Medes Islands for walking and marine-life viewing.

What languages does the guide speak?

The live guide speaks Catalan, English, Spanish, and French.

How much does it cost?

The price is listed as about $28 per person.

Can I change my plans if the weather isn’t good?

Swimming is only offered when weather conditions allow it, and you can cancel up to 24 hours in advance for a full refund.