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The summer party everyone will be talking about for a long time.

Right on Lake Dümmer. For 20 to 500 people
No company parking lot. No catering tent. Instead: the beach, a lake view, sunshine, and a team that’s genuinely excited for once. The Marissa Resort turns your summer party into a real experience—with the perfect setting, the perfect food, and plenty of space to celebrate.
Planning a summer party

Why your summer party should be held here this year.

Because the beach is better than a parking lot. Because a lake view is better than a conference room. And because a summer party that everyone still remembers in the winter isn’t just a fluke.

Lake Dümmer

Right on Lake Dümmer, with its own beach, plaza, and outdoor areas. In the summer, this isn’t just a resort—it’s the best setting for a party you can book.
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Indoor Meets Outdoor

Our indoor and outdoor spaces, such as the atrium and the plaza, can be flexibly combined for your summer festival.
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Custom Catering

A beach barbecue, a buffet in the Atrium, tapas at Beachmar, or a full-course dinner at Mezzomar. Our catering team will put together the perfect menu for your celebration.
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Activities included

Water sports, sailing, outdoor escape games, LYKKE LAND—there’s more than enough to do here for anyone who wants to. And if you just want to party, you can do that too. Both are possible.
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It's the setting that makes the celebration.

The Marissa Resort offers several venues that can be used individually or in combination. Small and intimate or large and unforgettable—depending on how many of you there are and what you have planned.
Atrium & Plaza
Beach & Beachmar
Lake Lodge
Mezzomar

Atrium & Plaza

The perfect venue for large summer parties. The Atrium can accommodate up to 350 guests, and the adjacent plaza extends the event outdoors. A stage, LED screen, private bar, and lighting design are all included. The seamless transition from indoors to outdoors makes this venue truly unique.
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Beach & Beachmar

Right on the water. Sand between your toes, a view of the lake, and a sundowner—Beachmar serves Mediterranean tapas, grilled specialties, and cocktails right on the beach. Perfect for summer gatherings with a laid-back atmosphere and the feeling that you’re actually on vacation.
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Lake Lodge

For exclusive, intimate gatherings. 73 m² on stilts in Lake Dümmer, lounge furniture, built-in speakers. The perfect venue for a special occasion—or as a VIP area within a larger celebration.
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Mezzomar

The largest restaurant on Lake Dümmer. For summer parties that call for a touch of elegance—with an Italian menu, lake views, and an atmosphere that sets it apart from the typical corporate party.
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More than just partying.

If you'd like, there's plenty more going on here.

A summer party doesn't have to have a set agenda. But if your team is looking for some action, there's plenty of it here. The event team can put together a program of activities upon request—or you can simply let the venue speak for itself.
Water Sports Challenge: SUP, Kayak, and Paddleboat – the first one across wins
"Cornelius Blackwood" Outdoor Escape Game – Solve puzzles as a team through the nature park
Building a raft on the beach – building it together, falling into the water together
LYKKE LAND for everyone who still has energy left after a meal
Bike tour around Lake Dümmer – for those of you who prefer a more leisurely pace
Plan a summer party with activities

Anyone who wants to can just stay.

The best part about a summer party at Marissa: the evening doesn’t have to end. If you want to stay overnight with your team, there are over 470 accommodations right at the resort. Apartments for couples and small groups, and vacation homes for teams who want to celebrate and spend time together. Enjoy breakfast together the next morning—and then head home at your leisure.

Apartments

For smaller groups and couples. The apartments at Marissa Resort offer comfort and privacy—with a private kitchen, balcony, and Scandinavian design by HAY. Ideal for teams staying together in small groups, while each unit retains its own unique character.

Houses

For teams that really want to come together. The vacation homes can accommodate up to 10 people—with multiple bedrooms, a spacious living area, a fully equipped kitchen, and a private terrace with a Weber grill. Some homes even include a hot tub and sauna. Not a hotel room, but a real home away from home.

What our guests say

Real experiences at our resort.
“…excellent and proactive coordination both leading up to and during the event. We felt completely at ease and had a wonderful time.”
SNOCKS
... Even during the preparations, it was "love at first sight" for us ...
Sievers-Group
... The venue had exactly what we were looking for: a place where we could meet with the entire department (about 200 people) in groups of various sizes ...
PwC Germany
... There was a contact person on site during the event who was available at all times to help with any issues, big or small. ...
Harting Deutschland GmbH & Co. KG
... Here, high-quality furnishings, a wonderful atmosphere, and a professional team come together. At Marissa, every member of staff works to ensure the success of your event ...
Mission Mittelstand GmbH
... Everything is organized with the utmost professionalism; the venues are fully equipped and, above all, clean. The Atrium is ideal for all kinds of large-scale events. ...
Tecis
... The organization was flawless, and the on-site team took excellent care of us and attended to our every need. The lakeside location was beautiful and offered a relaxed atmosphere ...
Markus Temming GmbH
And now?

Tell us about your idea

Our team will answer your questions and be at your side from the first meeting until your group's departure.

Pia Puhlmann

Conference Sales Manager

Helen Mählmann

Conference Sales Manager Assistant

Hanna Geraedts

Conference Sales

Cassy Cording

Conference Sales

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