I've had several coworkers take 1.5-2 months off at once, usually scheduled very deliberately to coincide with the completion of some major work effort (+ some

I've had several coworkers take 1.5-2 months off at once, usually scheduled very deliberately to coincide with the completion of some major work effort (+ some margin), when work would normally be slow as the next effort is barely ramping up. Of course, part of doing this means effectively not taking leave for a year so you have enough to roll over or using smaller amounts of leave for several years to accrue enough rollover leave.