The trek into the wilderness can also prove difficult ​ — especially when you are walking in a swampy area. What appears to be solid ground can turn out to be a mudhole.
Marjulkäigu võib teha raskeks ka see, et mõnes paigas on edasiliikumine küllalt vaevarikas, eriti soisel alal, kus jalg võib kuskile mülkasse vajuda.