(from: https://www.scouting.org/programs/venturing/venturing-awards-and-advancement/rank-advancement/tiers-of-adventure/)
**The Pathfinder Award requirements call for you to work with an experienced Venturer serving as a mentor to you as you lead a Tier II or Tier III adventure. In some cases, especially in new crews, an experienced Venturer may not be available. If this is the case, an experienced Venturer from another crew or the crew Advisor may serve as an adventure mentor. **
Your Advisor should be consulted to confirm the tier of adventure being implemented. He or she will have the final word, for example, as to whether a single-day organization-intensive activity meets the expectations for a Tier II or Tier III adventure.
The notion of tiers of adventure is designed to challenge you and the members of your crew to take on new challenges and provide you with experiences that you would not have otherwise encountered. The use of Tier II and Tier Ill adventures is important because of the degree of planning and preparation required to organize and carry them out. These adventures are real tests of your growth as a leader.
The fundamental difference is in the level of preparation, planning, and gathering resources to carry out the adventure. Generally, a Tier ll adventure lasts from two to four days and a Tier Ill adventure lasts for four days or more. When an event of fewer than four days is considered a Tier Ill adventure, it should reflect these criteria: