LibTourist is a library that provides information about zones, instances, transports and more.
For zones, instances, complexes (like Caverns of Time), arenas and battlegrounds, LibTourist can provide level range, faction, size, location and connections with other zones, as well as instance group sizes, instance entrance portal coordinates and battle pet level ranges, if applicable. LibTourist supports localization.
Color-coding for level ranges and zone names is available.
Relationships between continents, zones and instances can be provided, i.e. which instances are located in a specific complex, in which continent resides a zone and so on. In addition, a large number of iterations is available allowing addons to browse through subsets of the zone data.
The library contains information about connections between zones, including transports like zeppelins, boats and portals. These connections can be used to calculate a route between two zones. LibTourist can also be used for distance calculations between coordinates. Recently, data about flight nodes has been added.
An extensive API allows the addon developer to query LibTourist in many ways.
See the API Reference page for detailed information.
A version of LibTourist for World of Warcraft Classic is available. See the LibTourist Classic project page.
Note: Fishing skills
LibTourist used to provide minimum required fishing skills for each zone but this functionality is currently disabled because the values are obsolete (or at least outdated) and the game interface provides no way of retrieving this data. The original source of the fishing levels, El's Extreme Anglin', went offline years ago. Though the old site has been resurrected, the data has not been updated since WotLK.
Update May 7, 2020: a new mechanism to provide fishing skill info has been implemented in the latest alpha version, see release notes.