Game concept
Destination
The game also links it as Travel Destination.
From the game's encyclopedia
The Destination is the objective whilst Traveling, or one of several objectives. For a Pilgrimage it would be the Holy Site that is Traveled to, whereas for a Tour every single Vassal that is being visited would be considered a Destination.
The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.
Destination is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "The Destination is the objective whilst Traveling, or one of several objectives." It is part of Travel. The game also links it as Travel Destination. Patch 1.20.1.2, from game/common/game_concepts/04_ep2_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/04_ep2_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.