The sixth annual Speleo Photo of the Year photoraphy contest has once again been kicked off by the Lithuanian caving club Aenigma.

The contest, which began accepting photos on Monday, is open to any photographer who has taken a beautiful or interesting cave related photo during the course of 2011.

Photos can be submitted by emailing [email protected], and will be accepted until December 31st, 2011.

Beginning on January 1st, the photos will be displayed in an online gallery and folks will be able to go and vote on their favorites. On Feruary 7th, the votes will be tallied and used to help guide the final jury of five professional cave photographers in choosing the winners.

Prizes for the winners include Petzl lights and a cave pack.

For more information on the rules and regulations of the contest, or to just check out some of the previous years amazing entries visit The Speleo Photo of the Year contest site.

The Speleo Photo of the Year contest [speleo.lt via CaverInfo]