The trails within the national park are well marked paths. In all cases a naturalist guide is required to accompany the tourist, this for security reasons, to prevent the tourist from getting lost, injured and also to prevent the tourist from disregarding park rules. The trails are not paved, they are natural, but they are well maintained and clean. You can easily walk on them, as long as you pay attention to some branch, or root or mud puddle that is on the road, something that is inevitable given the conditions of the tropics. The path from Los Patos to Sirena is perhaps the most difficult to walk, however, the roads in San Pedrillo, Sirena and La Leona are easily accessible and suitable for any, unless you have a disability. It is not advisable to visit Corcovado if you use a wheelchair.