Multi-cache
From GeoWiki
A Multi-cache is a Geocache that has more than one waypoint. So, instead of going straight to the Geocache, you'll go to a waypoint where you'll find something that will help you get to the next waypoint, and so on. Most Multi-caches have between 2-5 waypoints, though there are exceptions to this.
An offset cache is usually a multi that has only 1 other location to find after decoding, updating or entering the co-ords given at the first location.
