Promotional Discounts & Coupons

COSI partners with local organizations such as the arts, museums, and area attractions to help benefit the community and offer exciting opportunities.

MEMBER DISCOUNTS & PROMOTIONS - View More Offers!
Refer-A-Member Bonus Invite a friend to become a COSI Member and COSI will share the rewards that referrals bring. When a new Member lists your name as a referral, they receive a complimentary guest pass (valued at $12.50) and you receive one free bonus month on your COSI Membership (up to three referrals each membership year). What an easy way to extend the fun and make your membership last even longer!
Fort Rapids Indoor Waterpark Resort COSI Members are now invited to Fort Rapids Indoor Waterpark Resort for a splashingly good time no matter what the weather. Show your COSI membership card and photo ID at Fort Rapids to purchase a daypass for $20 on Sunday through Thursday and $25 on Friday and Saturday (based on availability). Daypasses are not available to the general public. Children 3 years and under are free. COSI Members are also entitled to 20% off any room any day of the week. Located off I-70 on Hamilton Road, Fort Rapids is a fully western themed resort complete with 12 water slides, a zero depth toddler water play area, a four story interactive water structure, a lazy river, activity pool, concession stand and more!
Boonshoft Museum of Discovery COSI Members receive 50% off general admission COSI Members now receive 50% off general admission tickets at the Boonshoft Museum of Discovery and SunWatch Indian Village & Archaeological Park, both in Dayton, Ohio. To receive your discount, show your COSI Membership Card and a photo ID at the Boonshoft Box Office. For directions and hours, visit www.boonshoftmuseum.org. Discount applies to general admission only and does not include charges for theater and laser show. COSI also invites Boonshoft Members to receive 50% off general admission at COSI.

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