just a few clarifications- i'm seasonal right now, and you don't get a free annual pass. There's basically two classifications of seasonal. I'm not positive of the two names but I think it's CT-Frequent and CT-Infrequent. I'm classified as infrequent, because I'll maybe go up this summer, then again in august etc. But there are people who are seasonal who work every saturday, or people who are Equity that go from contract to contract. These people are the frequent seasonals, and they get the red ID. This red ID will get you into the parks and I'm sure a blue pass comes with it. For people like me though, I just get a new white ID everytime I go up there. That white ID will be valid for about a month or sometimes two months, so during that time span I could use it to get into the parks.... Hopefully that makes sense?! haha And you don't have to work a full week, only one shift every year. (unless other departments do it differently- but for entertainment it's only one shift.)
to the OP though you should definitely be able to work something out for that situation! I don't know how they would classify you- I would imagine as infrequent, but if you tell them you are planning on doing it for those two months every year, then I could see them throwing you in frequent. and that way, you would get your ID that you could use year round