Cache types

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NOTE: WORK IN PROGRESS



A geocache may be of several types.

This document describes the existing cache types across Opencaching sites.

Cache types matrix

ID Type Usage Image Notes
C[1] F[2] OCPL[3] OCUS[4] OCDE[5]
1 1 Unknown All Caches that do not fit any explicitely declared type
2 2 Traditional All Physical container at the coordinates
3 3 Multi-cache All Sequence of physical containers, each with clues leading to the next
4 4 Virtual cache All No physical container. Must visit the place and answer questions and provide proof you visited.
5 5 Webcam cache All No physical container. Must visit the place and take picture using the webcam and provide proof.
6 6 Event All No physical container. Not counted as "found". Social gathering of geocachers.
7 7 Puzzle cache All Physical container not at coordinates. Must solve puzzle to find it.
8 9 Moving cache OCPL Physical container changes location after each find.
8 8 Math/Physics cache OCDE Physical container not at coordinates. Requires to solve math or physics type problem.
9 14 Geopath final cache OCPL Bonus cache as GeoPath final (FIXME)
9 15 MP3 cache OCUS Physical container not at coordinates. Must use clues in audio file to locate.
9 9 Moving cache OCDE Physical container changes location after each find.
10 16 Owncache OCPL Travels with owner. Must meet owner to find. (FIXME)
10 10 Drive-in cache OCDE Physical container near parking. A.k.a. park&grab
10 17 Educache OCUK No physical container. Requires research about subject, questions to answer, proof of visiting the area (similar to "earthcache")No longer in use after OCUK migration to OCPL-current. See history of OCUK.
10 18 Guestbook cache OCUS Physical container is a guestbook, available to sign
11 11 USB cache OCUS Physical container is a USB flash drive. Log is a digital file.
12 12 BIT cache OCUS Playing card with serial number. See http://wiki.opencaching.us/index.php/BIT_Caches
13 13 Letterbox cache OCUS Similar to multi or mystery field puzzle, with final container additionally having a rubber stamp.
N/A 19 Benchmark OCUS Geographical survey benchmark
  1. Cache_type ID numbers currently in use. Duplicates and overlaps exist.
  2. Cache_type ID numbers; Future suggested remapping to resolve duplicates and overlaps.
  3. OCPL-current; Sites updated live from Github project repository; Member sites: OCPL, OCNL, OCRO.
  4. OCUS runs an older (from several years ago) version of OCPL code, based on OCUK
  5. OCDE running a single instance, multi-view, installation of OpencachingDeutschland/oc-server3 code.