Through the floor-to-ceiling windows and from the balcony of the HARMONIE vacation apartment, you’ll enjoy a wonderful view over the Diemelsee vacation village, all the way down to the lake and beyond toward St. Muffert and the rolling hills of the Sauerland low mountain range. <br>Your private parking space, as well as your own lockable bike storage room, are located right next to the property. This makes it the perfect starting point for hikes, bike rides, and trips to Willingen or Winterberg, or simply for relaxing days by the lake. <br>The HARMONIE apartment offers a stylish and high-quality setting for a relaxing getaway for up to two people plus their four-legged friend. Thanks to Wi-Fi, this property can of course also be a great alternative to working from home. <br>Whether you’re here for fall foliage, winter snow, spring greenery, or a summer retreat—this fantastic property features its own sauna, a large wellness shower, Smart TV in the living room and bedroom, a kitchen area with top-of-the-line appliances just like at home, and a super-cozy box-spring bed (180x200) that serves as a wonderful retreat from the hustle and bustle of everyday life in every season. <br>HARMONIE vacation apartment at Sonnenweg 48 on Lake Diemel. <br>Welcome to the QUARTIERFREUND family!<br>Booking Information <br>Images may show additional services, such as bed linens, towels, a grill, etc., some of which can only be added for a fee after the booking process is complete. If additional services are included in the rental price, they are explicitly described in the listing. <br>If pets are allowed in this vacation rental, this applies exclusively to dogs. <br>Some municipalities charge a visitor’s tax. This is not included in the booking price. <br>For arrivals within 5 days, we accept only payments via real-time bank transfer. Welcome to the Sauerland, one of Germany’s most popular vacation regions! Winter sports, water sports, swimming, fishing, hiking, and biking… This region is a destination in virtually every season. Just a few minutes’ drive away, a bit off the beaten path from the tourist hotspots of Willingen and Winterberg, lies the little village of Heringhausen, nestled in the midst of a lush green natural area and right on the beautiful Diemelsee. <br>Whether you’re seeking peace and quiet, looking for an active vacation, or traveling with the whole family, you’ll experience breathtaking views and unspoiled nature on certified hiking trails and designated mountain bike and cycling routes. For a day trip, crystal-clear streams and romantic villages with historic buildings await your discovery in the immediate vicinity. <br>The Fort Fun Adventure Park in Bestwig, Winterberg, Berleburg Castle, and Willingen—a town known far beyond the state borders for its lively nightlife—are also nearby. <br>Heringhausen and the Diemelsee vacation village are still (!) considered absolute hidden gems in the region. However, the local tourist information center has already undergone an extensive renovation and offers its guests—in addition to the super-friendly and helpful staff—an indoor and outdoor swimming pool with an adjacent wellness and sauna area, as well as an interactive exhibition about Lake Diemelsee.<br><br>September 2026 Stei <br>The vacation rental is very nice and cozy. Only the chairs at the dining table are uncomfortable! <br>Vacation rental amenities: excellent! <br>Vacation rental furnishings: excellent! <br>Cleanliness of the vacation rental: okay! <br>Booking process: excellent! <br>Property info & directions: excellent!<br> -----<br>September 2025 Christiane<br>It was a wonderful vacation all around. The sauna after long hikes feels great. The view from the balcony is one-of-a-kind.<br>Amenities in the vacation rental: okay! <br>Furnishings in the vacation rental: excellent! <br>Cleanliness of the vacation rental: excellent! <br>Booking process: excellent! <br>Communication regarding inquiries: excellent! <br>Property information & directions: excellent!<br> -----<br>August/2025 Schmidt<br>We felt very comfortable in this apartment. Everything we needed was there. This isn’t our first time at Diemelsee, and we always feel right at home here. We’ll