If you work at a business that employs large numbers, ask your human resource office if there are any discounts available to you. Many larger employers offer discounts to local attractions, gyms, and other businesses. State and federal employees also receive discounts to state and national park campsite rentals.
One of my employers, for instance, sends employees a book with discounts that we can receive to local businesses by showing our employee badge. It is a nice perk that only a few employees take advantage of.
Another option for a discount is if you are a member of an organization or church. You might check with local attractions about group buy rates. At some places, you can receive a discount when you buy a certain amount of yearly passes or tickets.