If you’re looking for a tropical getaway, Germany likely doesn’t come to mind first. Picture this: it’s a drizzly, 35°F Tuesday in Brandenburg. The sky is a stubborn shade of slate gray, and you’re wrapped in three layers of wool. But just 45 miles south of Berlin, inside a structure so massive it could swallow the Statue of Liberty sideways, the sun is shining, the temperature is a balmy 79°F (26°C), and the sound of crashing waves fills the air.
Welcome to Tropical Islands Resort, the world’s largest indoor water park. As a parent who has spent many vacations chasing sunshine only to be rained out, I can tell you that this place feels like a miracle for families. Housed in a former Soviet-era airship hangar, it is a 710,000-square-foot ecosystem where winter simply does not exist. It’s more than just a pool; it’s a self-contained world featuring a sprawling rainforest, a sandy beach, and even a "village" of authentic architecture from across the globe.
For families traveling through Europe, Tropical Islands offers a unique solution to the "travel burnout" that often hits kids after too many museums and cobblestone streets. It’s a place where you can trade your winter boots for flip-flops and let the little ones burn off energy in a safe, controlled, and utterly spectacular environment.
The Engineering Marvel: From Airship Hangar to Island Paradise
Before we dive into the pools, we have to talk about the "Dome." To understand the scale of Tropical Islands, you have to appreciate its history. This structure was originally built as a hangar for the CargoLifter—a massive airship that was never actually completed. When the company went bankrupt, the hangar was reimagined into a tropical paradise, opening its doors in 2004.
The sheer statistics of the building are enough to make your jaw drop. It is the largest freestanding hall on earth, measuring 1,181 feet long, 688 feet wide, and a staggering 351 feet high. To put that in perspective, you could fit eight football fields inside. Because the roof is so high, it has its own internal weather system; on very humid days, condensation can actually form small clouds near the ceiling.

One of the most brilliant pieces of engineering here is the south-facing side of the dome. A massive section of the roof was replaced with special UV-transparent film, allowing natural sunlight to pour in. This means that not only can you get a real suntan indoors, but it also allows the 50,000 plants living in the indoor rainforest to thrive. It’s an incredible feat of transformation—turning a cold, industrial relic into a lush, life-filled sanctuary.
Top Attractions Inside the Dome
Once you pass through the entrance, the scale hits you. My best advice for parents? Don't try to see it all in the first hour. The resort is divided into several distinct "worlds," each offering something different for various age groups.
The Tropical Sea
This is the heart of the resort. Imagine a pool the size of three Olympic swimming pools, fringed by a 650-foot sandy beach. The water is a consistent 82°F (28°C), and because of that UV-transparent roof, the area feels bright and airy even in the depths of a German winter. There are hundreds of lounge chairs, but I recommend heading to the far end of the beach if you want a slightly quieter spot to set up camp with the kids.
The World’s Largest Indoor Rainforest
This isn't just a few potted palms. This is a legitimate jungle with over 600 species of plants and 50,000 individual specimens. A 1-kilometer winding path takes you through dense greenery where you’ll spot flamingos, turtles in the ponds, and even exotic birds flying freely under the dome. It’s an educational experience as much as a scenic one, with signs explaining the delicate ecosystem maintained within the hangar.
The Lagoon
If the Tropical Sea is for swimming laps and sunbathing, the Lagoon is for adventure. With a water temperature of 90°F (32°C), it’s the warmest spot in the park. It’s designed to look like a Balinese cove, complete with a grotto, a waterfall, and two waterslides tucked into the rock formations. At night, the Lagoon is spectacularly lit, creating a magical atmosphere that feels like a scene from a movie.
Thrill-Seeking: The Waterslide Tower
For the older kids (and the brave parents), the waterslide tower is a must. Standing 82 feet high, it is Germany’s tallest indoor waterslide facility. There are four different slides, ranging from a gentle family slide to a high-speed "turbo" slide that can reach speeds of 45 mph.
Sophia’s Pro-Tip: The lines for the big slides are longest between 1:00 PM and 4:00 PM. If you’re staying overnight, head to the tower right after breakfast or during the dinner hour—you’ll often have the slides all to yourself!

Tropino Club
For those traveling with toddlers, the Tropino Club is a godsend. This massive play area features climbing frames, a giant Lego block area, and bumper boats. It’s a great "dry" alternative if the kids need a break from the water but still have energy to burn.
Amazonia: The Year-Round Outdoor Experience
While the dome is the main draw, don’t overlook Amazonia, the 35,000-square-foot outdoor area. It is open year-round, which sounds crazy in Germany, but the pools are heated to a cozy temperature that makes the outdoor air feel refreshing rather than freezing.
The highlight here is the Whitewater River. It is Germany’s longest jet-stream channel, stretching over 800 feet. You essentially hop in and let the current whisk you down a winding path. My kids could spend hours just doing loops of the river. There are also surf simulators and organized beach volleyball games during the summer months.
Sleeping Under the Dome: Accommodation Options
One of the most unique aspects of Tropical Islands is that it never closes. It is open 24 hours a day, 365 days a year. Because of this, staying overnight is an experience in itself. Watching the sun set through the dome windows and seeing the "moonlight" reflect off the water is something your family won't forget.
There are three main ways to stay:
- Safari-style Beach Tents: These are the most budget-friendly and adventurous options. Located right on the sand or in the rainforest area, these cloth tents come with mattresses and linens. It feels like real camping, though be warned: because it’s a tropical environment, it stays warm and a bit humid at night.
- Themed Luxury Suites: If you prefer more comfort, there are hundreds of permanent rooms built into the "Tropical Village." These are inspired by locations like Bali, Thailand, and Africa. They offer air conditioning, private bathrooms, and a much quieter night's sleep.
- Ohana Lodges & Holiday Homes: For larger families who want a bit of separation from the humidity of the dome, there are luxury lodges and holiday homes located just outside the hangar. These offer more space and full kitchens, with a free shuttle to bring you to the dome entrance.
Wellness and Dining
While the kids are busy at the Tropino Club, parents can rotate through the 33,000-square-foot Spa and Sauna complex. This is modeled after the Angkor Wat temple in Cambodia and features various saunas, steam baths, and massage treatments. Just a heads-up for North American travelers: like many European spas, the sauna area is a "textile-free" (nude) zone, though the rest of the park is standard swimwear.
When it comes to food, the Tropical Village offers a surprising variety. You aren’t stuck with just burgers and fries (though you can find those too).
- Sawadee: A great Thai-inspired buffet.
- Palm Beach Restaurant: Perfect for a sit-down dinner with a view of the Tropical Sea.
- The Tropino Restaurant: Specifically designed with kid-friendly menus and quick service.
Practical Information for Families
Planning a trip to a massive resort can be overwhelming, so here are the logistics you need to know to keep the trip stress-free and budget-friendly.
Location and Transport
The resort is located in Krausnick.
- By Car: It’s about an hour's drive from Berlin via the A13. Parking is free for guests.
- By Train: Take the regional train (RE2 or RB24) from Berlin to Brand (Niederlausitz) station. From there, a free shuttle bus meets every train and takes you directly to the dome in about 10 minutes.
Pricing and Hours
- Day Passes: Generally start around $40-$50 USD for adults, with discounts for children, students, and seniors.
- Children under 3: Get in for free!
- Hours: The resort is open 24/7. Day guests usually have access from 8:00 AM to 11:30 PM, while overnight guests have 24-hour access to the pools.
What to Pack
- Flip-flops: A must for walking between the different areas.
- Multiple Swimsuits: Because of the humidity, suits take a long time to dry.
- Bathrobes: Especially helpful if you are moving between the spa and the main pools.
- Cashless Wristband: Upon entry, you’ll get a wristband that acts as your locker key and your "credit card." You simply tap it to pay for food or drinks and settle the bill when you leave.
FAQ
Q: Is it too humid for babies? A: The humidity is high, but not stifling. Most babies do very well, especially since there are plenty of shallow wading areas. However, keep them hydrated and take breaks in the cooler "outdoor" Amazonia area if they seem fussy.
Q: Can we bring our own food? A: While the resort prefers you eat at their restaurants, small snacks and water bottles are generally allowed for families. Large coolers and full picnic spreads are discouraged inside the dome.
Q: Is it worth a day trip, or should we stay overnight? A: If you just want to see the spectacle, a day trip is fine. However, to truly relax and enjoy the "after-hours" magic when the day crowds leave, I highly recommend at least one night in a tent or suite.
Whether you’re a local Berliner looking for a weekend escape or a traveler wanting to add a splash of adventure to your European itinerary, Tropical Islands Resort is a destination like no other. It’s a testament to human ingenuity and a reminder that even in the middle of a cold German winter, paradise is only a train ride away.


