See http://www.amateurradio.com/ for a report by Steve VE7SL of his 6m exploits. This sounds like Es but on these very long paths I question the conventional theories of multi-hop Es. I wonder if this is some kind of chordal-hop Es? As I reported yesterday, my QRP 6m WSPR was spotted for the 3rd year running in Israel. It could be multi-hop but I have my doubts.
There is also the possibility of mesospheric noctilucent clouds being involved in some very long paths on 6m such as Europe to Japan. This 8000km + path seems to be there most summers. We have much still to learn.