Rosy - as requested, here is a new thread for an Edinburgh meet-up.
(You need to go into "Topics", choose a subject area - in this case "Other subjects", go down to the bottom of the list and there you'll find the option to "Create New Conversation".)
July 28 sounds OK with me. We've still not planned our holidays yet, but we're not likely to be away at that time (what's the point of going at peak season until you're forced to by school terms!).