Stromma operates as a boat tour agency based in Stockholm, offering a variety of guided sightseeing tours that explore both the city and its surrounding archipelago. The agency provides excursions that include bus and boat tours, allowing visitors to experience the scenic beauty of the region from multiple perspectives. Among the offerings are castle excursions, which highlight historical landmarks, and culinary cruises that focus on the local gastronomy.
In addition to these experiences, Stromma features popular tours that showcase the highlights of the archipelago, often accompanied by knowledgeable guides. The agency also offers brunch and lunch cruises, which provide dining options while enjoying the views. With a diverse range of tour categories available, Stromma caters to various interests, making it a notable option for those looking to explore Stockholm and its natural surroundings.