I was off in Belfast when this report came in from a Russian fan who happened to be in Malta when filming of Dothraki scenes were taking place. 7kingdoms.ru shares the report, with Westeros.ru providing Westeros.ru the English translation. It’s a terrific piece of reporting as they paid close attention to some of the details we’re all eager to know about, such as weapons and clothing. Regarding their description of the arakh, I believe we’ve glimpsed one previously.
Funnily enough, Linda sent me a text message about this report while I was visiting with Bryan Cogman, and I told him about it. He confirmed that they had been filming the wedding scene around that time, though on that particular day (Thursday) they had moved on to something else.
One last detail I should note is I have a separate report in from someone who was at the Azure Window who confirmed that they were, indeed, shooting right down by the shore.