The Rhodes Aquarium, officially the Hydrobiological Station of Rhodes, is a public aquarium and marine research station set in an elegant art-deco building at the far northern tip of Rhodes town. It is one of the oldest aquariums and marine institutes in Greece, and it still works as both a research centre and a family-friendly attraction where visitors walk through a cave-like undersea grotto to see Mediterranean species at close range. Indoors, compact and easy to reach on foot, it suits a hot afternoon or a break from the beach. Plan tickets and tours through My Greece Tours.
For the wider island, our Rhodes travel guide sets the aquarium in context alongside the harbour, the medieval streets and the coast. The sections below cover what the Rhodes Aquarium is, where it is and how to get there, what you can see inside, whether it suits families and is worth visiting, and the practical tips that make your visit smoother.
What is the Rhodes Aquarium?
The Rhodes Aquarium, officially the Hydrobiological Station of Rhodes, is both a marine research institute and a public aquarium. Housed in an art-deco building from the Italian period at the northern tip of Rhodes town, it is one of the oldest such stations in Greece and still operates today.
The aquarium began life as a serious scientific institution, and that dual identity still shapes the experience for every visitor today. Behind the public displays sits a working research station that studies Mediterranean marine life, local water conditions and the species of conservation interest that inhabit these seas. The building itself is part of the story, a graceful art-deco structure raised during the Italian administration of the island, when much of modern Rhodes town took on its distinctive, harmonious look. Because it was conceived as a station rather than a tourist showpiece, the atmosphere remains studious and old-fashioned in the best possible sense, far closer to a measured natural-history institute than a noisy, commercial theme-park aquarium aimed purely at entertainment.
For visitors, the appeal is partly historical and partly experiential, a rare blend you do not often find together. You are not only looking at fish, you are stepping inside one of the earliest aquariums in the whole country, an enduring institution that has quietly watched generations of curious travellers pass through its doors. The combination of genuine marine science, distinctive period architecture and a memorable subterranean layout gives the place a character that many newer, larger aquariums struggle to match for atmosphere. Our guide to things to do in Rhodes covers how the aquarium fits a wider day of sightseeing, and the next section covers where it is and how you reach it.
Where is the Rhodes Aquarium and how do you get there?
The Rhodes Aquarium stands at the far northern tip of Rhodes town, where the island narrows to a point between two stretches of sea. It is within walking distance of Mandraki Harbour and the medieval Old Town, so most visitors simply walk there along the waterfront.
Its position at the northernmost point of the town is a large part of the charm and the experience. The building sits almost entirely surrounded by water, exposed to the open sea on both sides, which feels wholly fitting for a dedicated marine station of this kind. From the centre of the new town or from Mandraki Harbour, the walk simply follows the coast and takes only a short while on foot, passing beaches and the breezy seafront promenade along the way. Many people happily fold the visit into a longer stroll around the northern tip, pausing at the aquarium before continuing on along the shore towards the next sight.
Reaching it from the Old Town is equally straightforward, as the imposing medieval walls lie a comfortable walk to the south along the harbour front. Local buses and taxis also serve the wider area for anyone arriving from the resorts further down the coast of the island. Because nearly everything clusters within the compact northern peninsula, you rarely need any transport once you are actually inside Rhodes town itself, which keeps a day of sightseeing simple. Our guide to Rhodes Old Town covers the medieval quarter you can pair with the visit, and the next section covers what you can actually see inside the aquarium.
What can you see at the Rhodes Aquarium?
The highlight is the basement, designed as a labyrinthine, cave-like undersea grotto where tanks set into rock-like walls display Mediterranean species such as fish, rays, moray eels, octopuses and sea turtles. Upstairs, a small museum shows preserved specimens, including a whale skeleton.
The grotto level is what almost everyone remembers most clearly afterwards. Rather than rows of ordinary glass tanks, the entire basement is shaped like a winding sea cave, with displays embedded into the textured walls so that you seem to be moving through a real underwater passage. Here you meet the living collection of Mediterranean marine life, among them shoals of local fish, rays gliding slowly along the floor, moray eels tucked into shadowy crevices, octopuses, sea turtles and other species native to the surrounding waters of the island. The dim, cavernous setting makes the whole encounter feel genuinely immersive and a little theatrical, which appeals especially to younger and first-time visitors.
The upper floor takes a different, more scholarly approach to the sea. There you find a compact museum of preserved specimens that carefully documents the wider marine environment, including a striking whale skeleton and dedicated exhibits devoted to sea turtles and the Mediterranean monk seal, a rare and protected animal of these waters. Together the two levels neatly balance the thrill of live creatures encountered below with the educational, conservation-minded displays presented above, so the visit informs as much as it entertains. Our guide to the Colossus of Rhodes covers another landmark near the harbour entrance, and the next section covers whether the aquarium suits families and is worth visiting.
Is the Rhodes Aquarium good for families and worth visiting?
Yes, the Rhodes Aquarium is a strong choice for families. It is indoors, compact and quick to walk around, the cave-like grotto delights children, and it sits within easy reach of the harbour, making it an easy, worthwhile stop on a busy or hot day.
Several features make it especially well suited to children of most ages. The overall scale is manageable, so younger visitors can comfortably see everything without tiring or losing interest, and the immersive grotto turns the visit into a small adventure rather than a passive walk past static tanks. Live animals such as turtles, eels and octopuses reliably hold attention, while the upstairs specimens gently introduce ideas about the sea and its conservation in a clear, accessible way. Because the whole attraction is undercover and indoors, it offers welcome shelter from the fierce midday heat or a rare rainy spell, which is precisely when families with restless children most need a good indoor option.
Whether it is worth visiting ultimately depends on what you are hoping for from the day. Set directly against the large modern aquariums found elsewhere, this is a modest, historic institution, so visitors arriving expecting a vast, high-tech attraction should sensibly adjust their expectations beforehand. As a characterful, affordable and genuinely central diversion, however, it richly rewards an hour or so of your time and pairs naturally with the nearby harbour and the medieval Old Town. Our guide to Rhodes with kids covers more family-friendly ideas across the island, and the next section covers the practical tips that help you visit.
What tips help you visit the Rhodes Aquarium?
Treat it as a short, central stop rather than a half-day outing. Buy your ticket on arrival, allow roughly an hour, and combine it with a waterfront walk to Mandraki Harbour or the Old Town. Visiting during the hottest hours makes the most of the indoor setting.
A little planning helps the whole visit flow more smoothly. The aquarium is ticketed, so it is wise to check the current opening times locally before you set out, as the published hours can vary noticeably by season. Aim to arrive at the moment you most want shade, since the cool, dim interior is a real relief during the fierce heat of the day. The grotto can feel a little narrow when busy, so quieter periods give you far more space to linger at each individual display, and comfortable shoes genuinely help on the walk along the exposed northern tip. Photography is generally low-light because of the cave-like design, so steady hands tend to beat flash for the darker tanks.
Above all, fold the aquarium into a wider itinerary rather than treating it as an isolated errand on its own. Its commanding position at the very top of the town makes it a natural bookend to a relaxed seafront stroll, a coffee at Mandraki Harbour or a long afternoon in the medieval streets, so you can comfortably cover several headline highlights together in one easy, satisfying loop without backtracking across town. Travelling with children rewards an early start, before the displays fill up and while small legs are still fresh, and carrying water for the open walk along the exposed northern point is sensible in summer. A short, well-timed visit slots neatly into almost any day in Rhodes town. Plan your visit and tours through our Rhodes travel guide.
Frequently Asked Questions
What is the official name of the Rhodes Aquarium?
The attraction is officially called the Hydrobiological Station of Rhodes, and it is widely known to visitors simply as the Rhodes Aquarium. The dual name reflects its dual purpose, because it is not only a public aquarium but also a working marine research institute, one of the oldest of its kind in Greece. It was established during the Italian period of the island’s history and is housed in an elegant art-deco building at the far northern tip of Rhodes town. Behind the displays open to the public, the station carries out scientific study of the Mediterranean marine environment and species of conservation interest. For travellers, this means the place offers more than a quick look at fish, as the historical and scientific context adds depth to the visit. When searching for it locally, you may see either name used, so recognising both the official title and the popular one helps you find it on maps and signs.
How long should I spend at the Rhodes Aquarium?
Most visitors find that around an hour is enough to enjoy the Rhodes Aquarium without rushing. It is a compact, historic attraction rather than a sprawling modern aquarium, so you can comfortably walk through the cave-like basement grotto, watch the live Mediterranean species, and then explore the small upstairs museum of preserved specimens in a single relaxed visit. Families with curious children might linger a little longer at the turtle, eel and octopus tanks, while those short on time can still see the highlights more quickly. Because it is so central, sitting within walking distance of Mandraki Harbour and the Old Town, it works best as one stop within a fuller day rather than a destination in itself. Many people pair it with a waterfront walk, a harbour coffee or a wander through the medieval streets. Allowing roughly an hour, and checking current opening times locally beforehand, lets you plan the rest of your day around it with ease.
Is the Rhodes Aquarium suitable for young children?
Yes, the Rhodes Aquarium is well suited to young children and is often recommended as a family-friendly stop in Rhodes town. The most appealing feature for little ones is the basement, which is designed as a winding, cave-like undersea grotto rather than a plain hall of tanks, so walking through it feels like a small adventure. Children can see living Mediterranean creatures up close, including fish, rays, moray eels, octopuses and sea turtles, which tend to hold their attention far better than static displays. The upstairs museum, with its whale skeleton and exhibits on sea turtles and the rare Mediterranean monk seal, introduces marine conservation in a way that curious children can grasp. Because the whole attraction is indoors and compact, it offers a cool, sheltered break on a hot or rainy day, and it does not involve long queues or vast distances to tire small legs. Its central location also makes it easy to combine with other gentle, family-friendly activities nearby.