This cache series is all about recognizing unconventional units of measure and converting between them and more standard units.The unit of measure this cache focuses on is the Lord of the Rings Marathon, or LotRM. One LotRM is equal to the amount of time it takes to watch all three movies in Peter Jackson's epic trilogy adaptation of The Lord of The Rings, which for the purposes of this cache equates to 9 hours and 18 minutes. You can access the puzzle here:
Unconventional Units: Lord of the Rings Marathon
The link will take you to a page where you must answer a simple trivia question about The Lord of The Rings, then perform some conversions between LotRMs and traditional time units in order to obtain the final coordinates.
You can see a list of all the caches in this series here:
Unconventional Units Start Page
BYOP, and happy hunting!