Sundbyholmsåsen Nature Preserve is a designated area that offers a variety of natural and recreational features. It is notable for housing a historic 17th-century castle, which is surrounded by a castle park that provides space for leisure activities. The preserve includes scenic walking trails that allow visitors to explore diverse natural environments, including one of Sweden's northernmost beech forests.
In addition to its natural beauty, the preserve offers amenities such as a café for refreshments and a swimming area for those looking to enjoy water activities. Boating enthusiasts can take advantage of the marina located within the preserve. The area is also home to the well-preserved Sigurdsristningen runestone, adding a historical element to the natural landscape. Sundbyholmsåsen Nature Preserve is a popular year-round destination for locals, attracting visitors with its combination of history and outdoor recreation opportunities.