Gdańsk, Sopot and Gdynia sit in a row along the Baltic, linked by one commuter train, so a short trip can take in all three. With only a few days, these are the stops we'd start with: museums kids can touch, piers out over the sea, a zoo with a zip line. Here's what we checked, from Neptune's Fountain to Malbork Castle, a day trip out of town.
Gdańsk Zoo covers 124 hectares in Oliwa, with nearly 900 animals from 144 species, including elephants, giraffes, lions, cheetahs, orangutans and red pandas. Keepers feed the African penguins and gray seals in front of visitors most days.
At the Children's Zoo, kids pet and feed goats, rabbits and alpacas. The ZOOlandia rope park inside the grounds has 15 tree obstacles and a 26-meter zip line.
Long Market (Długi Targ) is the old town's main square, a medieval market street running from the Main Town Hall to the Green Gate. Its centerpiece is Neptune's Fountain, a bronze statue of the sea god cast in 1615, in front of Artus Court.
The Gothic-Renaissance Town Hall houses a branch of the Museum of Gdańsk, and in summer its 80-meter tower opens for views over the city.
The Crane is a mid-15th-century port crane and city gate, the largest and oldest of its kind in Europe. Inside, a multimedia exhibition with walk-through sets recreates the 17th-century port: how ships found their way into harbor, the goods that arrived, old shipbuilding methods, and a historic tavern.
The visit ends at the crane's lifting mechanism, driven by wooden treadwheels 6 meters across.
Hevelianum fills the barracks and casemates of a 19th-century fort on Góra Gradowa, the hill above the Main Town. Around the World crosses seven continents, With Energy! is hands-on energy experiments, and Puzzle is logic and math challenges. In Playing with History, kids try on old uniforms and fire a virtual cannon by gesture. Outside, 20 hectares of paths lead to a playground and lookouts over the old city.
A hands-on science center in Gdynia where kids test the exhibits instead of reading about them. Magnesto has 10 magnetism stations, including an electromagnetic accelerator and magnet races. Tajemnice głębin shows over 40 models of deep-sea creatures, from vampire squid to glowing jellyfish. Other halls cover the human body, water, health, physics and nature, and family workshops run alongside the exhibitions.
Gdynia Aquarium spreads more than 200 water species over eight halls on five floors, from Amazon tropics and a coral reef to the open Pacific, the Baltic and the cold North Atlantic. The Cold Seas hall, opened in 2024 below sea level in the basement, holds unusual jellyfish and crustaceans.
It is run by the National Marine Fisheries Research Institute, and a free web app guide explains each animal.
The Museum of the Second World War tells the story of the war through military equipment, documents and wartime objects. Seeing the whole main exhibition takes at least three hours.
Younger kids start at Podróż w czasie, a children's exhibition at the beginning of the route that follows a Warsaw family through the war and includes a prewar school classroom. It comes with the main exhibition ticket.
Sopot Pier is a wooden boardwalk 511 meters long, 458 of them over the Baltic Sea. Near the end, a 132-meter side arm called the Ostroga branches off, and lower decks let passenger boats and yachts moor.
On the land side, a square holds a historic fountain, a concert shell, a lighthouse with a viewing deck, and amber and souvenir stalls.
AmberSky is a 60-meter observation wheel on Ołowianka island. Its 30 glass gondolas seat up to 12 people, are heated and air-conditioned, and carry an audio guide to the city's history and architecture.
A ride turns the wheel about three times, with views over the Old Town, the historic shipyard cranes, the amber-colored stadium and as far as the Hel Peninsula.
Oliwa Park is an 11-hectare historic garden beside Oliwa Cathedral, laid out in the 18th century in a formal French style with an English landscape section. The Oliwa Stream runs through it, with two large ponds, a cascade and four footbridges to cross. Kids can test the two whispering grottoes near the palm house, look for the lantern and gate in the Japanese-style garden, and walk the clipped lime avenues.
Kraina Zabawy is one of the biggest playgrounds in Gdańsk, set inside the seaside Ronald Reagan Park, which covers about 85 hectares. Standouts include a tower over 9 meters tall with a tube slide and a climbing wall, a rope pyramid more than 5 meters high, a play fire truck with two slides, a castle, monkey bars and swings. Teens and adults get a skatepark and an outdoor gym on site.
A sandy Baltic Sea beach beside a 136-meter pier that kids can walk out along. In summer, lifeguards watch the water from four stations.
The pier buildings hold a year-round restaurant, a bar and public toilets, including accessible ones, and the beach has freshwater rinse showers and plenty of changing cabins. Next to the beach, a park laid out in the 1840s has paths, benches and chess tables.
More than 1,000 pieces of Baltic amber fill two floors of the Great Mill, a medieval mill built by the Teutonic Knights. The first floor shows how amber forms, with lumps holding creatures trapped more than 40 million years ago, among them the world's largest spider found in amber. The second covers amber craft, from a 330-year-old chess set to modern jewelry. Each floor has a kids' corner with puzzles.
Malbork Castle is the red-brick fortress the Teutonic Knights built from 1280 on the Nogat river, and by land area the largest castle in the world. Kids walk the moat, gate passages and garden terraces, then the courtyards of the High and Middle Castle. The full route goes inside to the Grand Refectory and the Grand Masters' Palace, with an English audio guide included.
Galeon Lew is a passenger ship built to look like a 17th-century galleon, sailing under the Polish flag from the Długie Pobrzeże waterfront. The run to Westerplatte passes the Gdańsk Shipyard, the repair yard, the docks and Wisłoujście Fortress, while a guide tells the history in Polish, German and English. Sea shanties play on deck and there is a bar on board.
Gdańsk, Sopot and Gdynia sit in a row along the Baltic, linked by one commuter train, so a short trip can take in all three. With only a few days, these are the stops we'd start with: museums kids can touch, piers out over the sea, a zoo with a zip line. Here's what we checked, from Neptune's Fountain to Malbork Castle, a day trip out of town.
Gdańsk Zoo covers 124 hectares in Oliwa, with nearly 900 animals from 144 species, including elephants, giraffes, lions, cheetahs, orangutans and red pandas. Keepers feed the African penguins and gray seals in front of visitors most days.
At the Children's Zoo, kids pet and feed goats, rabbits and alpacas. The ZOOlandia rope park inside the grounds has 15 tree obstacles and a 26-meter zip line.
Long Market (Długi Targ) is the old town's main square, a medieval market street running from the Main Town Hall to the Green Gate. Its centerpiece is Neptune's Fountain, a bronze statue of the sea god cast in 1615, in front of Artus Court.
The Gothic-Renaissance Town Hall houses a branch of the Museum of Gdańsk, and in summer its 80-meter tower opens for views over the city.
The Crane is a mid-15th-century port crane and city gate, the largest and oldest of its kind in Europe. Inside, a multimedia exhibition with walk-through sets recreates the 17th-century port: how ships found their way into harbor, the goods that arrived, old shipbuilding methods, and a historic tavern.
The visit ends at the crane's lifting mechanism, driven by wooden treadwheels 6 meters across.
Hevelianum fills the barracks and casemates of a 19th-century fort on Góra Gradowa, the hill above the Main Town. Around the World crosses seven continents, With Energy! is hands-on energy experiments, and Puzzle is logic and math challenges. In Playing with History, kids try on old uniforms and fire a virtual cannon by gesture. Outside, 20 hectares of paths lead to a playground and lookouts over the old city.
A hands-on science center in Gdynia where kids test the exhibits instead of reading about them. Magnesto has 10 magnetism stations, including an electromagnetic accelerator and magnet races. Tajemnice głębin shows over 40 models of deep-sea creatures, from vampire squid to glowing jellyfish. Other halls cover the human body, water, health, physics and nature, and family workshops run alongside the exhibitions.
Gdynia Aquarium spreads more than 200 water species over eight halls on five floors, from Amazon tropics and a coral reef to the open Pacific, the Baltic and the cold North Atlantic. The Cold Seas hall, opened in 2024 below sea level in the basement, holds unusual jellyfish and crustaceans.
It is run by the National Marine Fisheries Research Institute, and a free web app guide explains each animal.
The Museum of the Second World War tells the story of the war through military equipment, documents and wartime objects. Seeing the whole main exhibition takes at least three hours.
Younger kids start at Podróż w czasie, a children's exhibition at the beginning of the route that follows a Warsaw family through the war and includes a prewar school classroom. It comes with the main exhibition ticket.
Sopot Pier is a wooden boardwalk 511 meters long, 458 of them over the Baltic Sea. Near the end, a 132-meter side arm called the Ostroga branches off, and lower decks let passenger boats and yachts moor.
On the land side, a square holds a historic fountain, a concert shell, a lighthouse with a viewing deck, and amber and souvenir stalls.
AmberSky is a 60-meter observation wheel on Ołowianka island. Its 30 glass gondolas seat up to 12 people, are heated and air-conditioned, and carry an audio guide to the city's history and architecture.
A ride turns the wheel about three times, with views over the Old Town, the historic shipyard cranes, the amber-colored stadium and as far as the Hel Peninsula.
Oliwa Park is an 11-hectare historic garden beside Oliwa Cathedral, laid out in the 18th century in a formal French style with an English landscape section. The Oliwa Stream runs through it, with two large ponds, a cascade and four footbridges to cross. Kids can test the two whispering grottoes near the palm house, look for the lantern and gate in the Japanese-style garden, and walk the clipped lime avenues.
Kraina Zabawy is one of the biggest playgrounds in Gdańsk, set inside the seaside Ronald Reagan Park, which covers about 85 hectares. Standouts include a tower over 9 meters tall with a tube slide and a climbing wall, a rope pyramid more than 5 meters high, a play fire truck with two slides, a castle, monkey bars and swings. Teens and adults get a skatepark and an outdoor gym on site.
A sandy Baltic Sea beach beside a 136-meter pier that kids can walk out along. In summer, lifeguards watch the water from four stations.
The pier buildings hold a year-round restaurant, a bar and public toilets, including accessible ones, and the beach has freshwater rinse showers and plenty of changing cabins. Next to the beach, a park laid out in the 1840s has paths, benches and chess tables.
More than 1,000 pieces of Baltic amber fill two floors of the Great Mill, a medieval mill built by the Teutonic Knights. The first floor shows how amber forms, with lumps holding creatures trapped more than 40 million years ago, among them the world's largest spider found in amber. The second covers amber craft, from a 330-year-old chess set to modern jewelry. Each floor has a kids' corner with puzzles.
Malbork Castle is the red-brick fortress the Teutonic Knights built from 1280 on the Nogat river, and by land area the largest castle in the world. Kids walk the moat, gate passages and garden terraces, then the courtyards of the High and Middle Castle. The full route goes inside to the Grand Refectory and the Grand Masters' Palace, with an English audio guide included.
Galeon Lew is a passenger ship built to look like a 17th-century galleon, sailing under the Polish flag from the Długie Pobrzeże waterfront. The run to Westerplatte passes the Gdańsk Shipyard, the repair yard, the docks and Wisłoujście Fortress, while a guide tells the history in Polish, German and English. Sea shanties play on deck and there is a bar on board.
