Indoor riding arena rental in ventura county. los angeles county?

LA has the LA Equestrian Center with the equidome but that's only for showing. El Sueno Equestrian Center has a covered dressage arena but that doesn't do much for you, Lindsay Farms has a small covered but they only have APHA pleasure horses there, Sunset Hills has an indoor but I'm not even sure if there are horses on the property anymore, Pierce College has a covered arena......I couldn't exactly tell you all of the places in LA because I don't live there, but I'm in Ventura and know just about ever single barn in the county. Whether the owners/trainers would let you use their arena for free jumping I am not sure. Some may and some may not. But I also know that in Ventura County will not permit large indoor arenas/covered arenas because you can only have so much covered square footage per acerage according to county law. The indoors that you do see were built before that law.