The Rite of Tal'oth is a Vulcan desert survival ritual conducted by young adults who are required to survive for four months in the desert with only a ritual blade being in their possession.
Spock undertook the ritual in his adolescence. (TOS comic: "When Worlds Collide: Spock Confronts the Ultimate Challenge")
In 2273, Tuvok participated in the Rite to purge himself of emotions after the death of his pet sehlat Wari. He found Starfleet training to be less of a challenge. (VOY episode: "Displaced", TLE novel: The Sundered)