On 24th: Whole day starting from, say 10 or 11. As for the route, it depends on you but on 25th I'll be working from morning till evening, too.
This year is a terrible year in terms of weekends
We might meet up in İstanbul or you and the gang might come here for fresh air.
Where is "here"?
I was thinking of setting up a ride to and around Iznik.
The holiday might be less of a good idea time-wise, I'll have family stuff and I'm sure we all want to take advantage of a few days off....if we have them. What about the weekend after? if you're no-where near Iznik I'm sure we can make it out to wherever you are to save time.