my horses get every winter off (roughly Oct to March, so 6 months!), since I live in the NE. they have full 24/7 turnout in a herd situation.
i agree with others, the winter vacation really only works if they see as much turnout as possible. the normal 6-8 hrs at barns is not enough IMHO for a full “dr green treatment”.
i do think that the time off helps especially if they had some chronic soreness from hard work and campaigning from that summer… and it’s definitely important they get a mental break after a long bout of showing… but it is not a magic cure all.
my complaint is that i think with older horses it gets harder and harder to bring them back each year, and horses with some older jewelry or body complaints you have to take it very slowly. slower than most people want to take it.
my gripe is that by the time i get them to peak and in their top condition, it’s the fall again. if i had my way i’d rather them only get 3 months off, but it simply isn’t realistic in my area for them to be kept in full work without an indoor.
mine all go back to work mid-march, usually on a 6-7 week conditioning schedule. cardio is easy and could be done in 5 weeks, but ligaments and tendons take much longer to condition.
they’re in great care and show great condition, but they lose a lot of muscling during the winter vacation.
mentally, i think it’s great for them and mine have all come back very willing – they don’t forget anything, and don’t come out “feeling rusty”, but i do notice especially with horses that might have older physical issues, that they lose a lot of strength in their weaker legs, so while winter vacations are great, it’s not all sunshine and roses and you do have to be very careful bringing them back into work.
just something to be mindful of since it wasn’t mentioned yet.
at this point i have done the “leg up”/hack 1 hr a day for a month, then 5 week conditioning thing so many times, i really don’t enjoy it - and in a perfect world i’d probably give them less time off so they didn’t lose as much fitness. i believe most blooded horses can go about ~6-8 weeks before they see much a change in loss of fitness.