Some more pictures that can be used as adventure settings. These were taken at Lost River Gorge & Boulder Caves in North Woodstock, New Hampshire. It is a 3/4 mile hike down and then up a gorge. Along the way up are various side caves you can enter. You should be able to click on the pictures for a larger view.
These are some assorted pictures of things players might find while traveling in the wilderness. Maybe there is a hidden entrance behind the waterfall?