In modern times the activity level also of the paraplegic population has decreased due to changes in everyday life. The paraplegic population desires to be more active but are not given the opportunity, esp. in nature. The prepared cross-country slopes pose impossible challenges with steep slopes that are impossible to climb and outright dangerous to decent. Using universal design principles, we designed a motorized sit-ski that makes the available cross-country ski infrastructure finally fully accessible for the paraplegic population. Results show that the proposed design enables poling uphill without the need for assistance and reduced speed downhill with increased safety, thus giving paraplegic the opportunity of freedom, independence, increased activity, and the opportunity to explore nature together and on par with the general population.