BSA provides the troop program features as a resource for Boy Scout troops. A PLC can use these guides to plan a series of meetings and outings around a single theme. My post Troop Program Features for Meetings and Outings has more information about these guides. One of the troop program features is a high adventure program.
The plans for the High Adventure troop program feature can be found in Volume 2 of Troop Program Features from BSA:
High adventure can mean a lot of different things to Scouts. It might mean backpacking on rugged mountain trails, canoeing in the Boundary Waters of the United States and Canada, sailing a large vessel off the coast of Florida, visiting a major city and seeing the sights, or trekking to a remote outpost at your council summer camp.
So the focus of this program feature is on getting out of your comfort zone and doing something new. Younger Scouts will work on hiking, camping, and nature requirements, along with a few other requirements. Experienced Scouts will work on Cooking, Hiking, and Camping merit badges. They might also work in some of the requirements for Wilderness Survival, Pioneering, and other nature related merit badges.
The big feature for the program theme is a high adventure campout. Try camping somewhere you’ve never been before. Look for an area which will allow your scouts to try something new. A high adventure campout is meant to be more challenging and often requires more preparation.