Northern European Legacy. 42 days off per year (after 20 yrs of svc), 22 wintertime, 20 summertime (may through sep). Points system to allocate whether you get your requested time off or not, i.e. if you got prime time last year, you might have to settle for something less this year. But 3 out of 5 yrs you get what you want pretty much.
If I had specific event next year, yes I could probably do it, at least with days off (1-5 days off requested can pretty much be guaranteed).