My parents had a spot that fit a 35 ft trailer with no problem. Walk in site 36 they think. Ask the host... very friendly and def knew the spots well
I've done it it's not bad. I have a 28' trailer I take there twice a year. I would go check it out first to stake out sites you like. If that's a option. Also I believe the site says what will fit in each site.
It could be a little tight, but it should work.
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