Queen's Bath, where I have a cache (GCTHC0), is often quoted as an example of the dangerous areas that need to be avoided.
1.) It is on the "beach", public land.
2.) There is a maintained trail to the site with a public parking lot at the trailhead.
3.) There are no "No Trespassing" signs.
Ownership is not always simple to determine without a trip to the Courthouse and "dangerous" situations are relative. Queen's Bath is clearly dangerous during high surf but the risk can be avoided if you avoid the shoreline. It's possible to access the cache without getting into danger. Geocaching would be boring if it did not take you to the unusual, out of the way places, regardless of the risk. Shouldn't we assume that Geocahers are smart enough not to do stupid things?