Isabelle Bittel, Director
Our new director from June 2024 grew up in Bellwald. She knows the world and tourism. In addition to sports retail, she left Bellwald at a young age and worked for 6 summer seasons at Hotelplan in Greece. She worked at the Beach Bar in Nottwil for three summers, including one season as team leader. A graduate in business administration HFW, she has spent the last few years working in key accounts and events for an IT company. Her vast experience in various areas combined with her studies convinced us that she is the right person for this job. In the end, she passed the Valais landlord patent in 2 weeks.
Sandor Todoruc, Chef
Sandor is a trained cook from Hungary but has been living in Switzerland for over 10 years. He has been with us for six seasons and is therefore the longest serving of our chefs. He knows the Gault Millau cuisine very well and has proven to be an experienced and especially efficient cook. Sandor is a reliable, upbeat guy and brings calmness into the kitchen with his quiet manner. He was promoted as Sous Chef cook on 2022 and due his Excellent Job since Winter 2024/2025 as Chef. It great having him with us
Marcus Lübke, Sous Chef
Globetrotter Marcus Lübke is a passionate chef. He has always worked in top restaurants in Germany, Switzerland, 7 years in Australia and also in Brazil. He has made a name for himself as a sous chef and head chef. As a young family man, he wants to show his family the Swiss mountain life. We are delighted to have such a renowned man as our sous chef.
Istvan Pedroczi, Cook
Istvan, 38, has extensive experience as cook; in addition to various positions in kitchens across Europe and Switzerland, he also lived in England for a few years. In 2025, he joined our Gault Millau-rated kitchen to prove himself in high-end gastronomy. He did such a good job that we rehired him for the summer of 2026. We are delighted to have three experienced chefs on our kitchen team, led by Sandor.
Oliver Halletz, Service
Oliver is a passionate waiter in his prime. As a trained restaurant specialist he has gained a rich experience especially in **** and ***** star houses. He has worked as Chef de Rang, head waiter and restaurant manager in his home country Germany, but also abroad. We are happy to have such an experienced man with us.
Tamas Dudoma Chef de Service
Tamas has been a passionate waiter through and through for almost 10 years, mainly in good establishments. He is a long-term employee in our Gault Millau restaurant. Originally from Hungary, he has lived in Switzerland for a long time and also understands and speaks Swiss German. It’s great to have such an upbeat, calm and competent professional. After Oliver left in December 2025, Tamas became chef de Service
Brian Rodriguez , Housekeeping and Maintenance Manager
Brian, Katherin’s boyfriend, is always in good spirits. He is Spanish, from Las Palmas in the Canary Islands. He has always worked at top-tier hotels, primarily in Australia but also at 5-star hotels in Switzerland. Brian is a versatile employee. Since he originally trained as a painter and interior decorator, he is also responsible for technical maintenance here.
Katherin E. Cara, Supervisor Housekeeping
Our Kathy—as we call her—is always in a good mood. It’s not easy to pinpoint her nationality. She’s from Venezuela, Colombia, and Italy, but she’s spent a lot of time in Spain, especially in Gran Canaria, where she lives in Las Palmas together with Brian. She has worked in prestigious homes, primarily in Australia and Switzerland.
Luca Kertész, Housekeeping
Luca is already familiar with our hotel; she helped out here part-time last winter during the high season. The 24-year-old Hungarian is very knowledgeable about the hospitality industry, as she manages a large campground back home during the summer season. Thanks to her professional work ethic and cheerful disposition, we’re glad to have her back with us this winter.Klicke hier, um Ihren eigenen Text einzufügen
Claudine, who has a degree in education, switched to the catering industry in 2022. In winter she is the tenant of the Gletscherblick restaurant on Bettmeralp and we are happy to have her as a part-time receptionist in summer.
Roger Geissberger, Owner
The workload Roger copes with is immense! In addition to his two hotels THE ONYA RESORT & SPA and the Hotel Zur Alten Gasse, he not only leads the FC Aarau as Vice President, but is also the Chairman and co-owner of the Knecht Travel Group group, which is one of the leading Swiss tour operators, and a loving family man. “The early bird catches the worm” is not just a phrase for Roger. In addition to his other duties and hobbies, he masters the flood of calls, mails and interviews that rain in daily, seemingly without problems.
The nice thing is that besides all this, Roger always has time to deal with a problem, to listen to a request or to chat with employees and customers. His team has become incredibly dear to him as he is the same to us! An owner, who puts so much strength and time into his house, transfers all of this to his team and this energy is mentally as well as physically touchable!
Bernadette Geissberger, Owner
Bernadette, fondly called Beni by all, is the good fairy of the house. The incredibly natural and friendly way she interacts with employees makes everyone feel part of the family. Not only is Beni the owner and interior decorator of THE ONYA RESORT & SPA, but she also handles the entire accounting. And this in addition to the work, which brings the accounting of the companies KN-Travel, RBG family holding and RGB hotels. The wide-ranged professional experience as a management assistant at Swissair and her duty as a mother makes Beni a hotel owner, everybody could wish for.
